Log-database: Aborted deletion of old revisions

Windows 1.2.6

My notes were encrypted in the past and I decrypted them quite a long time ago. I noticed this error in the log, and I'd like to know which note it is complaining about so I can delete it.

This error is in the log-database:
"Aborted deletion of old revisions for item because one of the revisions is still encrypted", "Error: One of the revision to be deleted is encrypted
Code: revision_encrypted
Error: One of the revision to be deleted is encrypted
at Function.deleteOldRevisions (C:\Users\Robert\AppData\Local\Programs\Joplin\resources\app.asar\lib\models\Revision.js:228:30)
at async RevisionService.maintenance (C:\Users\Robert\AppData\Local\Programs\Joplin\resources\app.asar\lib\services\RevisionService.js:256:5)"