Virtual Files Support Does not work

Hello, I have a problems with virtual files support.
I deleted Nexcloud before, after that was deleted folder Nextcloud with files inside.
And now I have a problem, after reinstalling - client try to sync with server and I getting error with some of files “Some Files Could Not Be Sync” and new Nextcloud Folder is empty.
What to do in this case? I do not want to reinstall full system on PC because of this.
OS:Windows 11

I tried to do total reinstall and remove that from Windows Panel. And after that was removed C:\Users< username >\AppData\Roaming\Nextcloud - folder. That does not help, no result. What can I do? Thank you

Many times the problem has to do with certain characters in the file path. Windows is pretty restrictive compared, say, to linux. NextCloud is very picky about this and that may be impacting you.

I suggest you start with a very simple example. Two or three files with only alphabet characters for names of files and folders. See if that works.