Reflector-simple: local (2.0-1.1) is newer than garuda (2.0-1)

A "warning" doesn't always equal an error. SGS was saying you could downgrade but there really isn't any reason to.
Rarely you will get these kinds of version warnings when packages change their numerical "naming" conventions (like with reshade a while back if memory serves correctly), and that would be worth a manual fix. This instance with reflector-simple, does not look like it is the case however.