Nextcloud Client showing error for sync non existing folder

startin nexcloud the look for changes starts for all folders
then always same folder makes an errror - this folder does not exist any more - but still gives error!

Nextcloud version (2.2.4):
Operating system and version (Client: Win 7Pro):
Apache or nginx version (no information):
PHP version (no information):
Is this the first time you’ve seen this error?: last already 2 weeks on my client

Can you reliably replicate it? (If so, please outline steps):
Even if deinstalling Nextcloud and new installation and deletion of all folder concerning next cloud sync the same error occurs

The issue you are facing:
no syncronistation possible

The output of your Nextcloud log in Admin > Logging:

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

The output of your Apache/nginx/system log in /var/log/____:

Remember, this information may be requested if it isn’t supplied; for fastest response please provide as much as you can :heart: Feel free to use a pastebin service, otherwise log files can be indented with 4 spaces on each line to present them in a friendlier way on the forum.

We put the template there for a reason. We don’t have enough information to help you, check the client logs (F12). How did you end up with the non-existing folder, did you delete it on the web-interface?