on the users login page, the following lines:
"columns" => explode($WA_Auth_Separator,"UserEmail".$WA_Auth_Separator."UserPassword"),
"columnValues" => explode($WA_Auth_Separator,"".((isset($_POST["userName"]))?$_POST["userName"]:"") ."".$WA_Auth_Separator."".((isset($_POST["Password"]))?$_POST["Password"]:"") .""),
had been changed to:
"columns" => explode($WA_Auth_Separator,"UserEmail".$WA_Auth_Separator."UserPassword".$WA_Auth_Separator."UserID"),
"columnValues" => explode($WA_Auth_Separator,"".((isset($_POST["userName"]))?$_POST["userName"]:"") ."".$WA_Auth_Separator."".((isset($_POST["Password"]))?$_POST["Password"]:"") ."".$WA_Auth_Separator."".((isset($_POST["userName"]))?$_POST["userName"]:"") .""),
i changed those lines back and the login is functioning now.