Fatal error: Uncaught Predis\ServerException: command not allowed when used memory > 'maxmemory'. in /www/shared/predis.php:469 Stack trace: #0 /www/shared/predis.php(580): Predis\ResponseErrorHandler->handle(Object(Predis\Connection), 'OOM command not...') #1 /www/shared/predis.php(1171): Predis\ResponseReader->read(Object(Predis\Connection)) #2 /www/shared/predis.php(1179): Predis\Connection->readResponse(Object(Predis\Commands\HashSet)) #3 /www/shared/predis.php(169): Predis\Connection->executeCommand(Object(Predis\Commands\HashSet)) #4 /www/shared/wp-index-redis.php(111): Predis\Client->__call('hset', Array) #5 {main} thrown in /www/shared/predis.php on line 469