Please see attached assembly and tell me - my way to simulate deformations is good or not? What I'm doing wrong?

Is simple hanger for spare wheel. Weight of wheel is about 100kg.

Whole of construction will be based on the plates at the ends.

Wheel will be bolted to the plate with two screws.

How this structure deform when wheel is mounted? What if wheel weight is for example 300kg?

Please don't beat me - is my first simulation ;-)

Can somebody fix my errors, if any?

Assembly and report included.