Help for Aimeos

I configured package at localhost with laravel 5 and it worked fine. but when i uploaded it to my bluehost server i got that error
FatalErrorException in Gettext.php line 118:
Allowed memory size of 268435456 bytes exhausted (tried to allocate 553648129 bytes)

I changed php memory limit up to 1024,2048 and still the issue is there . what would be the problem ?

Can you give us a bit more information about your environment?
For example, which PHP version do you use and is it executed as Apache module or via FCGI?