ImportError: AccessBlockedError when saving calendar events

[charlag]

ImportError
Error message:
undefined Number of failed imports: undefined First error: Could not save events. Number of failed imports: 1 First error: AccessBlockedError: 472: | POST /rest/tutanota/calendarevent/ODI4DpK--7-9
Stacktrace:
ImportError: Could not save events.
Number of failed imports: 1 First error: AccessBlockedError: 472: | POST /rest/tutanota/calendarevent/ODI4DpK--7-9
    at CalendarFacade.saveCalendarEvents (https://assets.tutanota.com/worker-lazy-DTt8XYB8.js:1:55550)
    at async CalendarFacade.saveCalendarEvent (https://assets.tutanota.com/worker-lazy-DTt8XYB8.js:1:55965)
App version:
261.250116.0
Client type:
Android
Additional info:
Mozilla/5.0 (Linux; Android 12; M2007J20CG Build/SKQ1.211019.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/131.0.6778.262 Mobile Safari/537.36

getting blocked is the main issue here