Why one of my forms was disabled?

I was building a new form and when i try to see the pre view is telling me that the form is disabled. Is this be cause i use the names of a browser in one of the boxes?

What can i do if I need to know the kind of browser the people are using?

Regards, 

Karen 

Your account is currently suspended. Our phishing tool suspended your account automatically. I have checked your form and I can see a field that are asking for a username. Please take note that collecting login credentials are not allowed here in JotForm. Please check our terms of use.

I have renamed that field to "Nombre / Name". Your account is now activated. 

If you have any questions, let us know. Thank you.