ok, the problem is with the code for the validation show if behaviors. you can fix it by going to the server behaviors panel, double clicking each validation show if, and re selecting the condition that should be used to trigger the validation error.
What version of Form Builder are you using? Make sure that you have installed the most recent version that is available in the download center. For Version 2, make sure to use the 2.0.1 Support Release 2 version available in the Support Release section of the Form Builder download center page. If you have a previous version installed, make sure to uninstall it from the extension manager before installing the newer one.