Describe the bug; What happened?

My and my friends were playing but suddenly crashed

I don't really know why, sorry very much

Expected Behavior

I hope it won't crash

Mod Version

5.0.2

Minecraft Launcher

Other

Operating System

Windows

Modpack

1.20.1 modpack

Additional context

I've the crashlog here

java.lang.NullPointerException: Cannot invoke "net.minecraft.class_1297.method_19538()" because "$$0" is null at knot//net.minecraft.class_1297.method_5858(class_1297.java:1579) at knot//chronosacaria.mcdar.goals.FollowSummonerGoal.method_6266(FollowSummonerGoal.java:41) at knot//net.minecraft.class_4135.method_6266(class_4135.java:27) at knot//net.minecraft.class_1355.method_6275(class_1355.java:85) at knot//net.minecraft.class_1308.method_6023(class_1308.java:771) at knot//net.minecraft.class_1309.method_6007(class_1309.java:2673) at knot//net.minecraft.class_1308.method_6007(class_1308.java:550) at knot//net.minecraft.class_1296.method_6007(class_1296.java:128) at knot//net.minecraft.class_1429.method_6007(class_1429.java:58) at knot//net.minecraft.class_1496.method_6007(class_1496.java:580) at knot//net.minecraft.class_3986.method_6007(class_3986.java:81) at knot//chronosacaria.mcdar.entities.WonderfulWheatLlamaEntity.method_6007(WonderfulWheatLlamaEntity.java:77) at knot//net.minecraft.class_1309.method_5773(class_1309.java:2419) at knot//net.minecraft.class_1308.method_5773(class_1308.java:351) at knot//net.minecraft.class_1496.method_5773(class_1496.java:621) at knot//net.minecraft.class_3218.method_18762(class_3218.java:739) at knot//net.minecraft.class_1937.method_18472(class_1937.java:480) at knot//net.minecraft.class_3218.method_31420(class_3218.java:385) at knot//net.minecraft.class_5574.method_31791(class_5574.java:54) at knot//net.minecraft.class_3218.method_18765(class_3218.java:353) at knot//net.minecraft.server.MinecraftServer.method_3813(MinecraftServer.java:897) at knot//net.minecraft.server.MinecraftServer.method_3748(MinecraftServer.java:824) at knot//net.minecraft.class_1132.method_3748(class_1132.java:105) at knot//net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:671) at knot//net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:265) at java.base/java.lang.Thread.run(Thread.java:1583)