bad URL for import

[4rt3m157]

hi Erik,
i would link to sync gnome-calendar with my school's time table.

I got a link like that : https://sand.my_school.fr/Telechargements/ical/my_name.ics?version=2022.0.3.0&idICal=random_string&param=random_string
when i run debug i got this :

Error finding sources: Failed to get properties: HTTP error code 501 (Not Implemented): 501 Unimplemented

Can you help me on that ?

thanks