unreal engine state tree error

I’m opening Zero Project. I’m getting errors related to state tree in Third Person Template unreal engine. I’m getting these errors even though I’ve never used it. I wasn’t getting these errors before 5.5 and before. This problem came after installing 5.6.I’d appreciate it if someone who knows could help me.

ERRORS :
LogClass: Error: StructProperty FStateTreeFaceLocationInstanceData::FaceLocation is not initialized properly. Module:InventoryProject File:Variant_Combat/AI/CombatStateTreeUtility.h
LogClass: Error: StructProperty FStateTreeGetPlayerInfoInstanceData::TargetPlayerLocation is not initialized properly. Module:InventoryProject File:Variant_Combat/AI/CombatStateTreeUtility.h
LogClass: Error: FloatProperty FStateTreeGetPlayerInfoInstanceData::DistanceToTarget is not initialized properly. Module:InventoryProject File:Variant_Combat/AI/CombatStateTreeUtility.h
LogAutomationTest: Error: LogClass: StructProperty FStateTreeFaceLocationInstanceData::FaceLocation is not initialized properly. Module:InventoryProject File:Variant_Combat/AI/CombatStateTreeUtility.h
LogAutomationTest: Error: LogClass: StructProperty FStateTreeGetPlayerInfoInstanceData::TargetPlayerLocation is not initialized properly. Module:InventoryProject File:Variant_Combat/AI/CombatStateTreeUtility.h
LogAutomationTest: Error: LogClass: FloatProperty FStateTreeGetPlayerInfoInstanceData::DistanceToTarget is not initialized properly. Module:InventoryProject File:Variant_Combat/AI/CombatStateTreeUtility.h