If you’re using the HS timestamp server with ScriptPlayer, you’ll need to make sure the script folder has been added to ScriptPlayer’s path settings so it knows where to look for scripts. If you’re using XBVR as well, then you need to download the scripts from XBVR so they’re renamed to match the title of the scene.
However, I’d just recommend using the native bluetooth features in HS if you’re using a Keon. Make sure you’re on the latest version of HS (v0.9.7), click on the synchronized peripherals icon (looks like a play button with radio waves above the seek bar), enable the toggle, click on “Scan Bluetooth Devices”, accept the requested permission, and your Keon should connect. Make sure your funscript is in the same folder as the video, and has the exact same name except for the file extension.