will not sync anymore

One folder on my Andoid Phone and one on my Win 10. The two Devices can see each other and in my browser (win 10) it says that everything is “up to date”. That is not true. No files are being synced

It work before I reinstall all my apps on my android phone

Try opening the web ui in the app and pressing the rescan button.

Okay in the "App Web Gui - it says "folder marker missing" I will try to out the smartest way to get it back again

Thanks by the way