Tried to invite couple of colleagues – shows 'server error'. Tried every role - nothing works.
'Role' field and the list of roles is empty now. Can't choose anything
We've fixed this and just released the fix - Thanks for reporting. You can go ahead and invite your colleagues from the Team Settings page.
Hey Andrey – terribly sorry about that. Looks like that just broke. We'll get this fixed ASAP and I'll update here when it is.