Error

Error #0070: the nickname cannot be changed since it is already in use

 

Error description

The rule for prohibiting duplicating users nicknames (logins) is on, and the selected name is in use by another account.

 

Problem solution

Choose another nickname or disable the rule for prohibition duplicating nicknames in MyChat Server settings.

 

The letter case does not matter, "FirstUser" and  "firstuser" are the same nicknames.

 

Important! Notice, if you disable the nickname control on the server, it complicates the login process for users when they use their login and password but not a UIN. If several users with the same nicknames are registered on the server, the system can't detect which user's account attempts to connect to the system.