Hello Ryan,
Thank you for sharing this screenshot.
So this notification means that the Memcached is detected but not running and this can occur when the PHP is upgraded sometimes.
Check the service at the CLI/SSH: memcached-tool 127.0.0.1:11211 display and memcached-tool 127.0.0.1:11211 stats.
telnet 127.0.0.1 11211
should communicate with memcache and respond to status commands etc
Look if the service is running: ps afux | grep memc
restart the service if needed (as root/sudo): service memcached restart.
Let me know if this helps!
Thanks!