I signed up with GDI through ZNZOne..I obtained a user name from GDI(income2flow2) and was told to go back to my backpage in ZNZ and enter that user name so I could get referrals..the problem is that I keep getting an error message when i click update?

Cannot input client data into autoresponder registered user table:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'custom3='income2flow2' where autorespondername='mep0812'' at line 3 statement was update registered_user set password='sailing',firstname='Michael', lastname='Poulnot',signupconfirmemail='mep0812@yahoo.com',address1='3314 Forest Dr',address2='', city='Aiken',state='SC',zip='29801',country='USA',phone='803-221-4358',fax=NULL,website=NULL,custom1=378515,custom2=,custom3='income2flow2' where autorespondername='mep0812'

I was told that the GDI username ID should just be numbers? When I signed up with GDI, the user name income2flow2 was accepted. I am really confused on how to get my GDI user name accepted on my ZNZ back page. Any help would be appreciated.