so I deleted everything from webdav and I instructed Joplin to upload everything again. This is how it goes:
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: GET /path/webdav/info.json HTTP/1.1
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst:
2022-09-23 19:48:35: (response.c.164) fd:12 resp: HTTP/1.1 404 Not Found
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Length: 341
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:48:35 GMT
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:48:35: (response.c.164) fd:12 resp:
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: GET /path/webdav/.sync/version.txt HTTP/1.1
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst:
2022-09-23 19:48:35: (response.c.164) fd:12 resp: HTTP/1.1 404 Not Found
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Length: 341
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:48:35 GMT
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:48:35: (response.c.164) fd:12 resp:
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: GET /path/webdav/info.json HTTP/1.1
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst:
2022-09-23 19:48:35: (response.c.164) fd:12 resp: HTTP/1.1 404 Not Found
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Length: 341
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:48:35 GMT
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:48:35: (response.c.164) fd:12 resp:
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: GET /path/webdav/.sync/version.txt HTTP/1.1
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst:
2022-09-23 19:48:35: (response.c.164) fd:12 resp: HTTP/1.1 404 Not Found
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Length: 341
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:48:35 GMT
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:48:35: (response.c.164) fd:12 resp:
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: MKCOL /path/webdav/locks/ HTTP/1.1
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: if-none-match: JoplinIgnore-67444
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Content-Length: 0
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst:
2022-09-23 19:48:35: (response.c.164) fd:12 resp: HTTP/1.1 405 Method Not Allowed
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Length: 359
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:48:35 GMT
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:48:35: (response.c.164) fd:12 resp:
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: MKCOL /path/webdav/temp/ HTTP/1.1
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: if-none-match: JoplinIgnore-88398
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Content-Length: 0
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst:
2022-09-23 19:48:35: (response.c.164) fd:12 resp: HTTP/1.1 405 Method Not Allowed
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Length: 359
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:48:35 GMT
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:48:35: (response.c.164) fd:12 resp:
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: PROPFIND /path/webdav/locks/ HTTP/1.1
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: depth: 1
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: content-type: text/xml
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: if-none-match: JoplinIgnore-62175
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: content-length: 190
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst:
2022-09-23 19:48:35: (response.c.164) fd:12 resp: HTTP/1.1 207 Multi-status
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Type: application/xml; charset="utf-8"
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Length: 447
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:48:35 GMT
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:48:35: (response.c.164) fd:12 resp:
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: PUT /path/webdav/temp/timeCheck348280.txt HTTP/1.1
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: content-type: text/plain
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: if-none-match: JoplinIgnore-2285
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: content-length: 9
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:48:35: (connections.c.771) fd:12 rqst:
2022-09-23 19:48:35: (response.c.164) fd:12 resp: HTTP/1.1 412 Precondition Failed
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Content-Length: 361
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:48:35 GMT
2022-09-23 19:48:35: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:48:35: (response.c.164) fd:12 resp:
2022-09-23 19:48:39: (connections.c.771) fd:12 rqst: PUT /path/webdav/temp/timeCheck348280.txt HTTP/1.1
2022-09-23 19:48:39: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:48:39: (connections.c.771) fd:12 rqst: content-type: text/plain
2022-09-23 19:48:39: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:48:39: (connections.c.771) fd:12 rqst: if-none-match: JoplinIgnore-7137
2022-09-23 19:48:39: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:48:39: (connections.c.771) fd:12 rqst: content-length: 9
2022-09-23 19:48:39: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:48:39: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:48:39: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:48:39: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:48:39: (connections.c.771) fd:12 rqst:
2022-09-23 19:48:39: (response.c.164) fd:12 resp: HTTP/1.1 412 Precondition Failed
2022-09-23 19:48:39: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:48:39: (response.c.164) fd:12 resp: Content-Length: 361
2022-09-23 19:48:39: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:48:39 GMT
2022-09-23 19:48:39: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:48:39: (response.c.164) fd:12 resp:
2022-09-23 19:48:46: (connections.c.771) fd:12 rqst: PUT /path/webdav/temp/timeCheck348280.txt HTTP/1.1
2022-09-23 19:48:46: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:48:46: (connections.c.771) fd:12 rqst: content-type: text/plain
2022-09-23 19:48:46: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:48:46: (connections.c.771) fd:12 rqst: if-none-match: JoplinIgnore-61152
2022-09-23 19:48:46: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:48:46: (connections.c.771) fd:12 rqst: content-length: 9
2022-09-23 19:48:46: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:48:46: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:48:46: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:48:46: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:48:46: (connections.c.771) fd:12 rqst:
2022-09-23 19:48:46: (response.c.164) fd:12 resp: HTTP/1.1 412 Precondition Failed
2022-09-23 19:48:46: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:48:46: (response.c.164) fd:12 resp: Content-Length: 361
2022-09-23 19:48:46: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:48:46 GMT
2022-09-23 19:48:46: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:48:46: (response.c.164) fd:12 resp:
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: PUT /path/webdav/temp/timeCheck348280.txt HTTP/1.1
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: content-type: text/plain
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: if-none-match: JoplinIgnore-549
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: content-length: 9
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst:
2022-09-23 19:48:56: (response.c.164) fd:12 resp: HTTP/1.1 412 Precondition Failed
2022-09-23 19:48:56: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:48:56: (response.c.164) fd:12 resp: Content-Length: 361
2022-09-23 19:48:56: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:48:56 GMT
2022-09-23 19:48:56: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:48:56: (response.c.164) fd:12 resp:
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: PUT /path/webdav/locks/2_1_0fa46b91eefd407f9b9cd966a9fc65ef.json HTTP/1.1
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: content-type: text/plain
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: if-none-match: JoplinIgnore-83891
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: content-length: 71
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:48:56: (connections.c.771) fd:12 rqst:
2022-09-23 19:48:56: (response.c.164) fd:12 resp: HTTP/1.1 412 Precondition Failed
2022-09-23 19:48:56: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:48:56: (response.c.164) fd:12 resp: Content-Length: 361
2022-09-23 19:48:56: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:48:56 GMT
2022-09-23 19:48:56: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:48:56: (response.c.164) fd:12 resp:
2022-09-23 19:49:01: (connections.c.771) fd:12 rqst: PUT /path/webdav/locks/2_1_0fa46b91eefd407f9b9cd966a9fc65ef.json HTTP/1.1
2022-09-23 19:49:01: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:49:01: (connections.c.771) fd:12 rqst: content-type: text/plain
2022-09-23 19:49:01: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:49:01: (connections.c.771) fd:12 rqst: if-none-match: JoplinIgnore-9115
2022-09-23 19:49:01: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:49:01: (connections.c.771) fd:12 rqst: content-length: 71
2022-09-23 19:49:01: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:49:01: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:49:01: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:49:01: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:49:01: (connections.c.771) fd:12 rqst:
2022-09-23 19:49:01: (response.c.164) fd:12 resp: HTTP/1.1 412 Precondition Failed
2022-09-23 19:49:01: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:49:01: (response.c.164) fd:12 resp: Content-Length: 361
2022-09-23 19:49:01: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:49:01 GMT
2022-09-23 19:49:01: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:49:01: (response.c.164) fd:12 resp:
2022-09-23 19:49:08: (connections.c.771) fd:12 rqst: PUT /path/webdav/locks/2_1_0fa46b91eefd407f9b9cd966a9fc65ef.json HTTP/1.1
2022-09-23 19:49:08: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:49:08: (connections.c.771) fd:12 rqst: content-type: text/plain
2022-09-23 19:49:08: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:49:08: (connections.c.771) fd:12 rqst: if-none-match: JoplinIgnore-90928
2022-09-23 19:49:08: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:49:08: (connections.c.771) fd:12 rqst: content-length: 71
2022-09-23 19:49:08: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:49:08: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:49:08: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:49:08: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:49:08: (connections.c.771) fd:12 rqst:
2022-09-23 19:49:08: (response.c.164) fd:12 resp: HTTP/1.1 412 Precondition Failed
2022-09-23 19:49:08: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:49:08: (response.c.164) fd:12 resp: Content-Length: 361
2022-09-23 19:49:08: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:49:08 GMT
2022-09-23 19:49:08: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:49:08: (response.c.164) fd:12 resp:
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: PUT /path/webdav/locks/2_1_0fa46b91eefd407f9b9cd966a9fc65ef.json HTTP/1.1
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: content-type: text/plain
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: if-none-match: JoplinIgnore-90245
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: content-length: 71
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst:
2022-09-23 19:49:18: (response.c.164) fd:12 resp: HTTP/1.1 412 Precondition Failed
2022-09-23 19:49:18: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:49:18: (response.c.164) fd:12 resp: Content-Length: 361
2022-09-23 19:49:18: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:49:18 GMT
2022-09-23 19:49:18: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:49:18: (response.c.164) fd:12 resp:
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: DELETE /path/webdav/locks/2_1_0fa46b91eefd407f9b9cd966a9fc65ef.json HTTP/1.1
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: authorization: Basic ***
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: cache-control: no-store
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: if-none-match: JoplinIgnore-68055
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: user-agent: Joplin/1.0
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: accept-encoding: gzip,deflate
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: accept: /
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: content-length: 0
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: Host: example.com
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst: Connection: keep-alive
2022-09-23 19:49:18: (connections.c.771) fd:12 rqst:
2022-09-23 19:49:18: (response.c.164) fd:12 resp: HTTP/1.1 404 Not Found
2022-09-23 19:49:18: (response.c.164) fd:12 resp: Content-Type: text/html
2022-09-23 19:49:18: (response.c.164) fd:12 resp: Content-Length: 341
2022-09-23 19:49:18: (response.c.164) fd:12 resp: Date: Fri, 23 Sep 2022 19:49:18 GMT
2022-09-23 19:49:18: (response.c.164) fd:12 resp: Server: lighttpd/1.4.63
2022-09-23 19:49:18: (response.c.164) fd:12 resp:
how do I make it work?
22.04 ubuntu lts with Joplin 2.8.8
the server is an ubuntu lts with lighttpd 1.4.63