I'm stuck at UE_LOG for Yaw, UE Crash

[maewnamcom]

When I add this line of code, compile and play. UE Crash immediately.
Why? Am I over-texturing in material? Is My PC Low spec?

UE_LOG(LogTemp, Warning, TEXT("Yaw is: %s"), GetOwner()->GetActorRotation().Yaw);

In UOpenDoor::TickComponent

Message window:

[DanM]

Yaw is a float not a string. You need %f not %s

[maewnamcom]

Thank you. I have visual error while watch the video and coding in same time.