Character Prefix is incorrect

Such issue occurs when Config.Multichar variable was not set and you've joined up a server

In some cases that value was set to false because you didn't need multi-character feature on your server.

So in order to fix it there's 2 ways:

If your server was running on Config.Multichar = false and you want to keep the players

The only way to do so is to add char1: prefix for every player. Take a note that it needs to be also changed in every other table containing the identifier of the player.

You can use that query and surely for the other tables you need to change the table name from users and the identifier to the identifier your table uses.

UPDATE users
SET identifier = CONCAT('char1:', identifier)
WHERE identifier NOT LIKE 'char%';

If you are on the fresh recipe

Fastest way is to remove your character by using command in txAdmin > Live Console multicharacter_esx_remove_users