ok it looks like there'a conflict between 2 items. However the 2 items in conflict are not the same..? I've found a folder with lots of empty pdfs. Deleted them all, including the folder. Still same error (on my windows app, on my mac everything seems fine)

Reinstalled Zotero, nothing changed, still same error and no sync.

ok thank you.
I have a question: because of this issue I've deleted some stuff but maybe I've deleted some useful pdfs.
Since I have a backup of the whole zotero data folder (before the error happened), If I re-upload it to my webdav cloud storage would that restore everything correctly?
Thanks

ok so just to make sure I understand:
- on laptop 1: I move the backup zotero folder in the current data folder (and eventually rename the old one)
- zotero is synced with webdav so it will automatically sync and update the folder in my cloud storage
- on laptop 2: I just start zotero and it will sync and update through webdav automatically

ok thanks. but I don't understand if I should do the same for both laptops? I've done the backup locally and restore file online and it seems fine. On my second laptop, should I also do the same or will it just update itself correctly with the cloud storage through webdav?

ok thank you very much, everything seems ok now.