Fatal error: Uncaught Predis\Response\ServerException: OOM command not allowed when used memory > 'maxmemory'. in /app/vendor/predis/predis/src/Client.php:370 Stack trace: #0 /app/vendor/predis/predis/src/Client.php(335): Predis\Client->onErrorResponse(Object(Predis\Command\StringSetExpire), Object(Predis\Response\Error)) #1 /app/vendor/predis/predis/src/Client.php(314): Predis\Client->executeCommand(Object(Predis\Command\StringSetExpire)) #2 /app/public.built/wp-content/mu-plugins/redis-cache/includes/object-cache.php(790): Predis\Client->__call('setex', Array) #3 /app/public.built/wp-content/mu-plugins/redis-cache/includes/object-cache.php(215): WP_Object_Cache->set('95f11e6a85f8df0...', Array, 'batcache', 450) #4 /app/public.built/wp-content/mu-plugins/batcache/advanced-cache.php(222): wp_cache_set('95f11e6a85f8df0...', Array, 'batcache', 450) #5 [internal function]: batcache->ob('<!DOCTYPE html>...', 9) #6 /app/public.built/wp-includes/functions.php(3718): ob_end_flush() #7 /app/public.built/wp-includes/class-wp-hook. in /app/vendor/predis/predis/src/Client.php on line 370