1.21.4: java.lang.IllegalStateException: Failed to get element ResourceKey[minecraft:sound_event]

Hai everyone! I'm trying to update my datapack to 1.21.4 and misod's site doesn't show any errors, but I'm getting the error in the title from every biome. The biome music and ambient was always bugged on that site even for 1.20, incase it concerns anyone. Here is the relevant part of my code: "ambient_sound": { "sound_id": "extrasounds:ambient.limbo.loop" }, "music": [ { "weight": 1, "data": { "sound": "extrasounds:music.limbo", "min_delay": 800, "max_delay": 8000, "replace_current_music": true } } ],