err_connection_failed on some crabfit pages

[scottrayl]

Description of the bug

A coworker of mine was able to open and interact with the first CrabFit schedule we created, but is not able to open a second one with a different url. Instead he gets an "err_connection_failed" error message. I can go to either url without a problem.

Are there any reasons within CrabFit that would cause this message?

To reproduce

1. Going to https://meet.dgnum.eu/scotts-test-event-721743 loads fine.
2. Going to https://crab.fit/swg-glt-01-april-21-may-30-2025-576697, coworker gets "err_connection_failed" message.

Expected behavior

No response

Additional information

No response