Lightroom web is not responding, shows only "https://lightroom.adobe.com/libraries?"

[ericg39780395]

Hello!
When trying to start Lightroom WebApplication on Google Chrome or on MS Edge, the page doesn't load. 
Instead the browser command line shows "https://lightroom.adobe.com/libraries?" and the three dots in the middle of the screen are running. But nothing else happens.

My Lightroom Desktop (Windows) permanently shows "Syncing items" for the last days.
When filtering for Sync Status "Error", there are no items to show.
Same goes for Syncing Status "Syncing".

Nevertheless syncing works with my Android mobile Apps as regular.
My Android Lightroom says "Synced", as normal.

Lightroom CC as well says "Synced".

My Lightroom System with some 5000 images has worked well so far. 
I have not made any changes in my system. 

There is obviously a problem with the online library.
Is there a chance to get Lightroom Web Application working again?
Thank you

[selondon]

I had this on Lightroom Web for over a year. Then it fixed itself. Never did get to figure out the cause.