without more information that would be hard to diagnose
I mean has the code been altered in any way?
Reason i ask is if the username on the submitted form is less than 2 characters or blank the script dies and asks the user to correct the username thus they can not have an empty username and nothing would be inserted into the database.
At least thats what I get using the script and testing it.
Code:
Content visible to verified customers only.
Thats for it being blank and here is 2 characters
Code:
Content visible to verified customers only.
Then of course before any queries are done in the script is this which tells the script to die or stop and give a message
Code:
Content visible to verified customers only.