Fatal error: Uncaught RedisException: read error on connection to tcp://redis:6379 in /var/www/html/config/db.php:11 Stack trace: #0 /var/www/html/config/db.php(11): session_start(Array) #1 /var/www/html/config/db.php(18): startSession() #2 /var/www/html/index.php(21): include('/var/www/html/c...') #3 {main} thrown in /var/www/html/config/db.php on line 11