error when click payment & module

[carputer]

please tell me this error

when i click payment
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 24576 bytes) in C:\AppServ\www\presta\classes\Module.php(325) : eval()'d code on line 151

when i click modules
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 106 bytes) in C:\AppServ\www\presta\classes\Module.php on line 469

how i must to fix problem

thank you very much
your prestashop is perfect

[rocky]

It appears a module is using up too much memory. Unfortunately, the error message doesn't say which module is causing the problem. Try editing your php.ini and increasing your memory_limit from 8M to higher values until the error message disappears.