Valheim plus has not received any significant updates. The mod is broken and as of right now there is no maintenance by the creator.

There are community fixes, but those are just going to be temporary bandaids.

Unless someone commits to maintaining the mod if you want to continue using it you need to research how to play without updating the game.

https://steamcommunity.com/app/892970/discussions/0/3827537216853346525/
https://steamcommunity.com/app/892970/discussions/0/6620894968762024640/
https://steamcommunity.com/app/892970/discussions/0/6620894968760355510/