Cant join the site

After register General Info . 2nd page  Additional Info cannot register. I getting error, say 

How to fix this.  please someone help.

Thank you

Senthur

Hello Senthur!

Did you see this message somewhere else except the second page of the join? PM me with your Dolphin admin data also.

Hi I send all info to your mailbox. Did you get it?

let me know 

thanks 

Senthur