Dell G15 5510 makes buzzing noise when fans start spinning

A few weeks ago I received my laptop back from repair after I had it fixed because the fans made a really weird noise.

Ever since it has been making weird noises still, I can't open a support ticket because one is already open and since a few days it even started making a buzzing noise. Anyone have any idea what could be the cause of it? I ran SupportAssist and it told me everything was fine.