The calendar app is not working. Only blank space is shown.
It throws error:
The page’s settings blocked the loading of a resource at self (“script-src ‘nonce-######’ ‘unsafe-eval’”).
’#####'contains value.
Edit: Solved the problem by enabling Sharing.
Please use the appropriate bug tracker for bug reports
Found a strange behaviour. If I disable sharing, the calendar doesnt work.
After enabling sharing, It works.
@realraghavgupta please open an issue at https://github.com/nextcloud/calendar/issues – that is the proper place to report issues with the Calendar. Thank you! 
(cc @georgehrke)
@BernhardPosselt please be helpful by linking the appropriate issue tracker.
Not necessary.
We are already aware and already fixed this issue