Unable to load any WHMCS page using the ioncube header

I really haven't any idea the best way to explain what I'm experience. But basically any page that was installed with WHMCS, for example register.php, index.php, clientarea.php will not load, they just hang until there's a timeout on the request.

I've checked that PHP in general is working properly, that the correct IonCube loader is installed, tried multiple PHP versions(5.5, 5.6, 7.0) and still no change. What's even more, whenever I restart the Easy Apache webserver from WHM, I'm able to connect to the /admin panel. However, if I try to load one of the pages that use the Ioncube header within WHMCS scripts than it completely breaks WHMCS, and I'm unable to load any PHP page. It would seem from the digging I've done that it has something to do with this piece of code within the Ioncube header -

while($__i--){
   if($__rd[$__i]=='/'){
       $__lp=substr($__rd,0,$__i).$__ln;

       if(file_exists($__oid.$__lp)){
           $__ln=$__lp;
           break;

       }

   }
}

That would probably be causing the never ending loading. There's nothing even in error logs, so I'm really desperate for some help right now.

It sounds like something may not be compiled correctly, have you tried reinstalling ionCube Loaders and reuploading all the WHMCS files?

Yes I've done both of those things. The files were replaced because I did a manual upgrade from 6.1 to 7. The loaders were removed and then reinstalled manually. And since the code is encoded as per the license agreement, I can't just debug the issue myself

Can you confirm your current PHP Version & ionCube Loader Versions

Their both 5.6.

Hi Greyfield,

Sorry, could you please confirm the exact ionCube Loader Version Number you are using

php56-php-ioncube6

6.0.4-3.3.12.cpanel

Best thing to do would be open a ticket