@Lupoluke
You get a crash because somehow your SK_Chest skeletal mesh has zero size:
Error: Nans found on Bounds for Primitive SK_Chest : Origin X=nan Y=nan Z=nan, BoxExtent X=nan Y=nan Z=nan, SphereRadius nanI would not mark this object as “Save Game” property and see what is going on that makes the mesh shrink to zero scale… Your crash happens even before the plugin does anything.