The issue with the site calendar should now be fixed. You can now go to the Calendar page and see events, as well as add events as usual.
We've also updated the calendar and changed the look slightly in a way that I think will reduce confusion about who to contact with questions about events.
The Teams > Tournaments Schedule page is currently having a bit of work done, but you can still see the tournaments by going to the calendar page and filtering by the "tournaments" category. The Tournaments Schedule page should be back up shortly.
Thank you to everyone who helped us catch these errors, and please send us any additional feedback or observations.