First things first — I see that the site appears to be back online, which is great!
Unfortunately, the only config changes that should be made in the wp-config.php file is the addition of authentication information for the plugin. Without more information, my guess is that the authentication information was incorrect and so the plugin was not able to connect to the Redis server. It should be noted that the values in the installation instructions are for example only and you’ll need to get your specific credentials from whomever your Redis server is with.
I hope this helps, feel free to respond to the thread if you encounter any bugs or issues!
