Hey there, I recently installed the plugin set it up and it was showing the players on the server perfectly.
However players have been joining and leaving however it hasn't updated the player count once in about 10 minutes.

It seems the bot updates the player count when a player joins, but doesn't update when a player leaves. 
For example. Player #1 joins, player count goes up to 1. Player #1 then leaves, the player count stays at 1.