MyChat Client error #0078: you cannot leave this text chatroom ("Name", UID XXX)

Error

Error #0078: you cannot leave this text chatroom ("Name", UID XXX)

 

Error description

Users are added automatically to auto-created conferences by groups, by the server. You can't leave it at own will.

 

Problem solution

Delete a user on Admin Panel in a group that included to the auto-created conference.