Hello i have a problem when i try to clear cache.
Uncaught exception 'UnexpectedValueException' with message 'RecursiveDirectoryIterator::__construct(/var/www/prestashop/cache/smarty/compile/fa): failed to open dir: Permission denied' in /var/www/prestashop/tools/smarty/sysplugins/smarty_internal_utility.php:242 Stack trace: #0 [internal function]: RecursiveDirectoryIterator->__construct('/var/www/presta...', 0) #1 /var/www/prestashop/tools/smarty/sysplugins/smarty_internal_utility.php(242): RecursiveDirectoryIterator->getChildren() #2 /var/www/prestashop/tools/smarty/Smarty.class.php(1469): Smarty_Internal_Utility::clearCompiledTemplate(NULL, NULL, NULL, Object(SmartyCustom)) #3 /var/www/prestashop/classes/SmartyCustom.php(99): Smarty->clearCompiledTemplate() #4 /var/www/prestashop/classes/SmartyCustom.php(118): SmartyCustomCore->check_compile_cache_invalidation() #5 /var/www/prestashop/classes/module/Module.php(2335): SmartyCustomCore->createTemplate('/var/www/presta...', NULL, NULL, Object(Smarty_Data)) #6 /var/www/prestashop/classes/module/Module.php(230 in /var/www/prestashop/tools/smarty/sysplugins/smarty_internal_utility.php on line 242
Prestashop 1.6.1.5