Not sure if this belongs here, but I've had a custom lovelace card workin for quite a while, but now it stopped working all of a sudden. It says custom integration music-group-card doesn't exist. I confirmed it's accessible via the URL, it's pulled down in the browser, but it does have the following console error:
error:
Uncaught (in promise) https://ha.w00t.cloud/local/music-group-card.js
Here's my card, it's very basic: https://gist.github.com/alex-phillips/f5fb91c801ad8b2b45231b11da255262