"There was an error creating your group - please try again."

Today I tried to create a new group multiple times, but Steam always gives me the same error message.



Group Name: Játékok Magyar Fejlesztőktől / Games by Hungarian Developers



also tried "Játékok Magyar Fejlesztőktől (Games by Hungarian Developers)"



(both fit in the 64 characters limit)



Abbreviation: magyarjatek (fits in the 12 characters limit)



Group Link: magyarjatekok



All of the above values were available.



Public Group: Yes



Any ideas?

"There was an error creating your group - please try again."