Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 186339271 bytes) in /home/bitrix/www/bitrix/modules/security/classes/general/post_filter.php on line 274

Call Stack:
    0.0002     232904   1. {main}() /home/bitrix/www/bitrix/urlrewrite.php:0
    0.0002     233784   2. include_once('/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php') /home/bitrix/www/bitrix/urlrewrite.php:11
    0.0021     446640   3. include_once('/home/bitrix/www/catalog/index.php') /home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
    3.2736  110987424   4. require('/home/bitrix/www/bitrix/footer.php') /home/bitrix/www/catalog/index.php:1412
    3.2736  110987864   5. require_once('/home/bitrix/www/bitrix/modules/main/include/epilog.php') /home/bitrix/www/bitrix/footer.php:4
    3.2845  111403416   6. require('/home/bitrix/www/bitrix/modules/main/include/epilog_after.php') /home/bitrix/www/bitrix/modules/main/include/epilog.php:3
    3.2851  111440304   7. CAllMain->EndBufferContentMan() /home/bitrix/www/bitrix/modules/main/include/epilog_after.php:36
    3.4498  111429440   8. CAllMain->EndBufferContent() /home/bitrix/www/bitrix/modules/main/classes/general/main.php:3138
    7.0408  204804216   9. ExecuteModuleEventEx() /home/bitrix/www/bitrix/modules/main/classes/general/main.php:3190
    7.0411  204815344  10. call_user_func_array:{/home/bitrix/www/bitrix/modules/main/classes/general/module.php:490}() /home/bitrix/www/bitrix/modules/main/classes/general/module.php:490
    7.0411  204815768  11. CSecurityXSSDetect::OnEndBufferContent() /home/bitrix/www/bitrix/modules/main/classes/general/module.php:490
    7.0775  204816264  12. CSecurityXSSDetect->process() /home/bitrix/www/bitrix/modules/security/classes/general/post_filter.php:55
    7.1130  297992736  13. CSecurityXSSDetect->filter() /home/bitrix/www/bitrix/modules/security/classes/general/post_filter.php:72
    7.1131  297993448  14. preg_replace_callback() /home/bitrix/www/bitrix/modules/security/classes/general/post_filter.php:274