Yeah, this one's common. The motor might be loose or there's something stuck inside. First, power it off and unplug it. Check that nothing is blocking the air intake or outlet grilles—a toy, a curtain, even a thick layer of dust can cause noise.
If that didn't work, the motor itself could be damaged or a foreign object is inside the housing. Don't try to open it yourself, as that voids the warranty. You'll need to contact their support at [email protected] for service.
Make sure you're moving it slowly if you ever need to reposition it, and never move it while it's running.