ReferenceError: genDataFromText is not defined
Edit: now that I think about it, just because shaderoo.js is loaded first, doesn't mean getDataFromText will by called immediately. I don't have the time to debug or even just read someone else's code right now, so I'll just leave it at that.
NotAllowedError: The play method is not allowed by the user agent or the platform in the current context, possibly because the user denied permission.
I also see this warning:
Loading failed for the <script> with source “http://127.0.0.1:8081/socket.io/socket.io.js?_=1585039727308”.
and the socket stuff is for remote osc-connections (you'd have to start a small server-script locally to use that - see shaderoo help-page)