I have great performance on the team selection screen, but as soon as someone else joins and the NPCs start generating, the game drops to 1 fps for the rest of the game. The round time is also 49 minutes as well.

The console is spammed with this error:

[ERROR] addons/guesswho-master/gamemodes/guesswho/gamemode/shared.lua:73: attempt to call method 'IsPlayerHolding' (a nil value)
1. unknown - addons/guesswho-master/gamemodes/guesswho/gamemode/shared.lua:73

I'm playing on a P2P server, and I have the guesswho-master in my addons, and I have deleted the .gma file for guesswho. Anyone have a solution?