Why are disabled my forms?

This is because you're asking for username and password in your forms: 

I have removed those fields from your forms in order to activate your account, please avoid ask for username, passwords, CC information or any other information that may be critical, if you keep doing this then your account may be permanently suspended, this is also stated in our terms, take a look here: http://www.jotform.com/terms/ 

Please take a look to your account, your forms should be available now.