»Max number of registers

Hi I am trying to play gc but I changed my name like 4 times and now it says I have max number of registers and I can't play. Please help me asap

 

Unregister all your previous accounts then you should be fine.

 

, I changed my name but each of them are on the same account

 

Unregister your other accounts by doing /unregister (password) or try registering your other account by using a different ip (at your friend's house or something) than login.
Every time you change your name, you are creating another account. Guildcraft does not support name changes so when you use a different name, you lose everything that you have.