Crash on joining server because "p_130086_" is null

[agrumpytedybear]

13.12 23:10:11 [Server] Server thread/INFO agrumpytedybear joined the game
13.12 23:10:11 [Server] Server thread/INFO [xa.pa.OpenPartiesAndClaims/]: Updating all forceload tickets for 25c5aae9-a922-481b-8540-aa815d81a3e1
13.12 23:10:11 [Disconnect] User agrumpytedybear has disconnected, reason: Internal Exception: io.netty.handler.codec.EncoderException: java.lang.NullPointerException: Cannot invoke "net.minecraft.resources.ResourceLocation.toString()" because "p_130086_" is null
13.12 23:10:11 [Server] Server thread/INFO agrumpytedybear left the game
13.12 23:10:11 [Server] Server thread/INFO [xa.pa.OpenPartiesAndClaims/]: Updating all forceload tickets for 25c5aae9-a922-481b-8540-aa815d81a3e1
13.12 23:10:11 [Server] Server thread/WARN handleDisconnection() called twice

 

Just switched our forge 1.20.2 server to a 1.20.1 and added a few mods. This is the errors it is giving me now after trying to join. The mods we have are 

Apotheosis-1.20.1-7.1.0

ApothicAttributes-1.20.1-1.2.0

balm-forge-1.20.1-7.2.1

BiomesOPlenty-1.20.1-18.0.0.592

Bookshelf-Forge-1.20.1-20.1.6

cristellib-1.1.5-forge

EnchantmentDescriptions-Forge-1.20.1-17.0.9

jei-1.20.1-forge-15.2.0.27

open-parties-and-claims-forge-1.20.1-0.20.1

Patchouli-1.20.1-83-FORGE

Placebo-1.20.1-8.6.0

SereneSeasons-1.20.1-9.0.0.46

sophisticatedbackpacks-1.20.1-3.19.4.978

sophisticatedcore-1.20.1-0.5.111.517

TerraBlender-forge-1.20.1-3.0.0.169

Towns-and-Towers-1.12-Fabric+Forge

waystones-forge-1.20-14.1.0

Xaeros_Minimap_23.9.3_Forge_1.20

XaerosWorldMap_1.37.2_Forge_1.20

YungsApi-1.20-Forge-4.0.2

YungsBetterDesertTemples-1.20-Forge-3.0.3

YungsBetterDungeons-1.20-Forge-4.0.3

YungsBetterEndIsland-1.20-Forge-2.0.4

YungsBetterJungleTemples-1.20-Forge-2.0.4

YungsBetterMineshafts-1.20-Forge-4.0.4

YungsBetterNetherFortresses-1.20-Forge-2.0.5

YungsBetterOceanMonuments-1.20-Forge-3.0.3

YungsBetterStrongholds-1.20-Forge-4.0.3

YungsBetterWitchHuts-1.20-Forge-3.0.3

YungsBridges-1.20-Forge-4.0.3

[Paint_Ninja]

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