On the mystic spindles game, whenever I click matchmaker 3 or matchmaker 6, I am either met with a blank page or the following text:

Fatal error: Uncaught Error: Call to undefined function getParameter() in /home/forge/subeta.net/src/games/mystic_spindles/blobs.php:3 Stack trace: {main} thrown in /home/forge/subeta.net/src/games/mystic_spindles/blobs.php on line 3

I am a mac os user. I have mac os monterery and my browser is google chrome. I have also tried loading those levels on firefox and opera but have gotten the same result.