Game crashes randomly

Not a duplicate of MCPE-52008.

The game freezes, then crashes randomly. specific ares seem to trigger the crash and nothing in the logs other than below messages.World is in peaceful mode, 

Errors below are caused by mob spawners as there are no mobs in the world.  The errors are not what causes the crash as these messages are all over but the crash only happens in certain areas. Due to logging limitations I am not able to diagnose further.

is there a way to get more verbose logging?

I have attached a pruned world download which spawns you right in one of the spots that crashes the game. I hope this helps you track down the bug.

 

[Molang][error]-minecraft:skeleton | Error: accessing a variable that doesn't exist: variable.isholdingitem
[Animation][error]-minecraft:skeleton | error: animation 2 of state default of controller__general encountered an error
[Molang][error]-minecraft:zombie | Error: accessing a variable that doesn't exist: variable.isholdingitem
[Animation][error]-minecraft:zombie | error: animation 2 of state default of controller__general encountered an error
[Molang][error]-minecraft:cave_spider | Error: accessing a variable that doesn't exist: variable.isholdingitem
[Animation][error]-minecraft:cave_spider | error: animation 2 of state default of controller__general encountered an error
[Molang][error]-minecraft:evocation_illager | Error: accessing a variable that doesn't exist: variable.tcos0
[Animation][error]-minecraft:evocation_illager | error: animation 0 of state default of controller__move encountered an error
[Molang][error]-minecraft:witch | Error: accessing a variable that doesn't exist: variable.tcos0
[Animation][error]-minecraft:witch | error: animation 0 of state default of controller__move encountered an error
[Molang][error]-minecraft:slime | Error: accessing a variable that doesn't exist: variable.tcos0
[Animation][error]-minecraft:slime | error: animation 0 of state default of controller__move encountered an error