[BMR777]

I don't know if it would, the only thing I could think is that if it had the wrong permissions it might not be executed by the PHP interpreter and that would cause issues. Try setting the permissions to 644 and see if it makes a difference.

I didn't see readfile in your disabled functions, but your host has a lot disabled, so I wonder if something else that the file requires is also being disabled. Also, does your host force ads on your account? If they do, this could cause the file to not work properly.