Registration Error

[sbsforum.us]

When new members are trying to register they are getting the following error:

The following errors occurred during your registration

* Please use words in your username

Any idea what is causing this... Hopefully something simple!

Thanks in advance.

[sbsforum.us]

I am still having this issue... Is no one else having this issue?

--------------- Added 1283271187 at 1283271187 ---------------

I finally figured it out.. It was this mod - (Stop Spammers!) MARCO1 Preventing guests to register numbers as their username