ICS Import from OUTLOOK not working

Hello

Since a few days/weeks (I’ve only realized it today), my ICS-Import from outlook is not working anymore.

With the manual import over the booking-calendar-plugin I get following message:

[WPBM Error] Could not download URL https://outlook.office365.com/owa/calendar/903caf88edac4fae871f39659b40e00d@lifecoaching-regensburg.de/55719bb1b8e546fdacdba772f7daae8910273331494395816898/calendar.ics

With the import over the booking-manager-plugin I get this error message:

\n\n\n

\n \n\n

\n

\n\n 

\n\n

500

\n

Something went wrong.

\n

\n

Outlook is not supported on this browser. Not all web browsers support Outlook on the web. Find a supported browser or logout here.

Click here to sign out.

\n\n \n

\n \n More details\n

\n

\n \n \n\n

\n

\n\n\n\n' , 'error' , 5000 , true );

And the same message as in the booking-calendar plugin.

The import via cronjob (website https://dominik-feucht.de/ics-import) shows only 0 imported bookings (I’ve created a few todays to test the import)

Can you help me please?
If you need further informations, please tell me.

Booking calendar is version 10.11

Booking-Manager is version 2.1.14

Thank you for your help