My UE4 project crashed when I try to put my created class into viewport

[anonymous_user_ae3d98ae]

Crashed in the 50 line

void ASnake::AddSplineMeshComponents()
{
	SplineMeshComponentArray.Empty();
	const int32 Count = SplineComponent->GetNumberOfSplinePoints()-1;
	PrintString(FString::Printf(TEXT("Count = %d"), Count));
49.	UE_LOG(LogTemp, Warning, TEXT("Count = %d"), Count);
50.	for (int32 i = 0; i < Count; i++)
51.	{
52.		FName Name = *FString::Printf(TEXT("SplineMeshComponent%d"), i);
53		USplineMeshComponent * SplineMeshComponent = NewObject<USplineMeshComponent>(this, Name);
		if (IsValid(SplineMeshComponent) && IsValid(StaticMesh))
		{
			SplineMeshComponent->SetupAttachment(SplineComponent);
			SplineMeshComponent->SetSimulatePhysics(true);
			SplineMeshComponent->SetCollisionProfileName(TEXT("BlockAllDynamic"));
			SplineMeshComponent->SetMobility(EComponentMobility::Movable);
			SplineMeshComponent->SetStaticMesh(StaticMesh);
			SplineMeshComponent->SetForwardAxis(InForwardAxis);
			SplineMeshComponentArray.Add(SplineMeshComponent);
			SplineMeshComponent->RegisterComponent();
		}
	}
}