Hello, when updating my server to 1.20.1 and testing the tutorial plugin. When pressing a player NPC setup to run the command "st play (tutorial_num) (player_name)" it causes an issue in the console which can be seen below.

(Hopefully this isn't because of me using 1.20.1 instead of 1.20, if so is it possible to have the plugin updated for it to work?)
Any help would be much appreciated :)
Thanks!