Fatal error: Uncaught Predis\Response\ServerException: OOM command not allowed when used memory > 'maxmemory'. in /var/www/html/modules/rediscache/vendor/predis/predis/src/Client.php:416 Stack trace: #0 /var/www/html/modules/rediscache/vendor/predis/predis/src/Client.php(385): Predis\Client->onErrorResponse(Object(Predis\Command\Redis\SET), Object(Predis\Response\Error)) #1 /var/www/html/modules/rediscache/vendor/predis/predis/src/Client.php(336): Predis\Client->executeCommand(Object(Predis\Command\Redis\SET)) #2 /var/www/html/modules/rediscache/classes/RCRedisCache.php(119): Predis\Client->__call('set', Array) #3 /var/www/html/classes/cache/Cache.php(234): RCRedisCache->_set('016449455132c3e...', Array, 0) #4 /var/www/html/classes/cache/Cache.php(441): CacheCore->set('016449455132c3e...', Array) #5 /var/www/html/classes/cache/Cache.php(410): CacheCore->addQueryKeyToTableMap('c516c767e8ce692...', 'ps_category_lan...', Array) #6 /var/www/html/classes/cache/Cache.php(364): CacheCore->updateTableToQueryMap('\n\t\t\tSELECT cl.`...') #7 /var/www/html/classes/db/Db.php(678): CacheCore->setQuery('\n\t\t\tSELECT cl.`...', Array) #8 /var/www/html/classes/db/Db.php(698): DbCore->getRow('\n\t\t\tSELECT cl.`...', true) #9 /var/www/html/classes/Category.php(1378): DbCore->getValue('\n\t\t\tSELECT cl.`...') #10 /var/www/html/classes/Product.php(5654): CategoryCore::getLinkRewrite(191, 4) #11 /var/www/html/classes/ProductAssembler.php(209): ProductCore::getProductProperties(4, Array, Object(Context)) #12 /var/www/html/classes/controller/ProductListingFrontController.php(108): ProductAssemblerCore->assembleProducts(Array) #13 /var/www/html/classes/controller/ProductListingFrontController.php(379): ProductListingFrontControllerCore->prepareMultipleProductsForTemplate(Array) #14 /var/www/html/classes/controller/ProductListingFrontController.php(635): ProductListingFrontControllerCore->getProductSearchVariables() #15 /var/www/html/controllers/front/listing/BestSalesController.php(63): ProductListingFrontControllerCore->doProductSearch('catalog/listing...', Array) #16 /var/www/html/classes/controller/Controller.php(319): BestSalesControllerCore->initContent() #17 /var/www/html/classes/Dispatcher.php(510): ControllerCore->run() #18 /var/www/html/index.php(28): DispatcherCore->dispatch() #19 {main} thrown in /var/www/html/modules/rediscache/vendor/predis/predis/src/Client.php on line 416