Dreame Ultra L10s a weird Sound

Please watch video. It started making this noise like the engine or vacuum isn't working well anymore it's a whine. Not sure what to do to fix this.

It sounds like a piece of debris is caught in the brushes. Remove the dust bin and or the brushes and make sure that channel is completely clear.

Take all the brushes and mop heads off and see if it still makes the noise. If it doesn't, add the parts back one at a time and test for noise after each addition.