Can't Access Meeting Options ("Something went wrong")

Hello,

I'm organizing a webinar on Teams, so I'd like to set the waiting room and host & attendees to the meeting I set. But I can't access Meeting Options. I was always told "Something went wrong. Reload the page or, if this keeps happening, try again later".

I've tried the methods suggested in these two discussions:

- Can't Access Meeting Options

- "Meeting Options" not working for "Teams Free" account

but none of the them worked for me.

I've also tried to log into my Teams with an incognito browser, didn't work either.

Does anyone know how to solve this problem?

Thanks in advance,

PC