-- MOD mumblelink --
Details:
Mod File: mumblelink-1.16.5-5.0.0.jar
Failure message: MumbleLink for Forge has class loading errors
java.lang.RuntimeException: Attempted to load class zsawyer/mods/mumblelink/MumbleLinkImpl for invalid dist DEDICATED_SERVER
Mod Version: 5.0.0
Mod Issue URL: https://github.com/zsawyer/MumbleLink/issues
Exception message: java.lang.RuntimeException: Attempted to load class zsawyer/mods/mumblelink/MumbleLinkImpl for invalid dist DEDICATED_SERVER

You are trying to run the client-side only mod on a Minecraft server. It doesn't work like that. You need a separate Mumble server ("Murmur").