[14:28:16] [Server thread/ERROR]: Encountered an unexpected exception
net.minecraft.class_148: Ticking entity
at net.minecraft.server.MinecraftServer.method_3813(MinecraftServer.java:911) ~[server-intermediary.jar:?]
at net.minecraft.class_3176.method_3813(class_3176.java:322) ~[server-intermediary.jar:?]
at net.minecraft.server.MinecraftServer.method_3748(MinecraftServer.java:851) ~[server-intermediary.jar:?]
at net.minecraft.server.MinecraftServer.handler$baa000$modifiedRunLoop(MinecraftServer.java:5396) ~[server-intermediary.jar:?]
at net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:676) ~[server-intermediary.jar:?]
at net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:273) ~[server-intermediary.jar:?]
at java.lang.Thread.run(Thread.java:833) [?:?]
Caused by: java.lang.NullPointerException: Cannot read field "field_18250" because the return value of "it.unimi.dsi.fastutil.ints.Int2ObjectMap.get(int)" is null
at dev.itsmeow.whisperwoods.entity.EntityWisp.method_5773(EntityWisp.java:114) ~[whisperwoods-1.18.2-2.1.0-fabric.jar:?]
at net.minecraft.class_3218.method_18762(class_3218.java:702) ~[server-intermediary.jar:?]
at net.minecraft.class_1937.method_18472(class_1937.java:485) ~[server-intermediary.jar:?]
at net.minecraft.class_3218.method_31420(class_3218.java:363) ~[server-intermediary.jar:?]
at net.minecraft.class_5574.method_31791(class_5574.java:54) ~[server-intermediary.jar:?]
at net.minecraft.class_3218.method_18765(class_3218.java:331) ~[server-intermediary.jar:?]
at net.minecraft.server.MinecraftServer.redirect$bhe000$fixUpdateSuppressionCrashTick(MinecraftServer.java:6290) ~[server-intermediary.jar:?]
at net.minecraft.server.MinecraftServer.method_3813(MinecraftServer.java:907) ~[server-intermediary.jar:?]