HELP!!! Is my MINI FRIDGE BROKEN? IM SCARED IS IT BROKEN?

I bought a new mini fridge today. I waited 5 hours or longer to turn it on. It was barley turned on since 2 hours ago and had a loud humming sound. Then I put my heavy microwave on top of it and after few minutes the humming noise stopped. Now after few minutes again the humming noise is back but weird noise. Is this normal? I’ve been moving the fridge tiny bit as I felt it was too close to the wall. It’s cold inside tho.
HELP!!! Is my MINI FRIDGE BROKEN? IM SCARED IS IT BROKEN?
Post Opinion