I've been trying to setup Zen Cart for a while i keep on running into this error while trying to setup:

Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 92160 bytes) in /var/www/web47/web/ZenCart/includes/modules/payment/paypalwpp.php on line 1698

This occurs when i go to the admin section -->Module--> payment

I've been trying to fix this issue, in my websearch most forums suggested ini_set("memory_limit","32M");

and...
ini_set("max_execution_time","3600");

This doesn't seem to make any difference at all.
Please help!