As above the account was over limit. I deleted everything but this did not change the over limit message. There should be no more content in the cloud. Is there a manual possibility to check and delete the Joplin Cloud content`
Make sure sync after deleting everything, and go to Tools => Attachments to delete the large attachments too. Note that it takes up to one hour for the available size on Joplin Cloud to be updated
Thanks for the idea. I already did this before. Before this i exported the reduced notebooks to get an absolute clear account. Still not the expected result.