Guys i think its Bug with protector 3.2 i get the same thing too , i see register.php and there the attack as DOS and as Spam this start after updated from 3.1 to 3.2

to check make sure , i tried to register in my website with 3 diffrent Users and i Got Blank Screen when i tried to create the Thrd User , i tried that Seviral times and when i turned the protector Off i could Register with Diffrent users without Problem , and then again i turned protector On and tried to register 3 diffrent users and i Got the balnk screen again on thrd Creation of User .