NullPointerException: Cannot invoke "net.minecraft.nbt.CompoundTag.m_128459_(String)" because "nbt" is null

[JonathanHDawdy]

friend gets this error occasionally when joining game useing essensials.

https://paste.essential.gg/zuQUkfrcCK

deleting player data sometimes fixes the issue for a session or 2 but its really frustrating him. please let me know what we can do to fix this.
essentials team did verify the issue is not with essentials.

[JonathanHDawdy]

I should also specify an essentials coder points to Mcreator as the cause as they beleve this was use to make this mod.