Question Fan is not working correctly..

[MissyMagnificent]

Hello friends. I've had this problem with one of my fans before, but it hasn't happened in a long time, so I was hoping it wouldn't happen again. But today it happened again but now I have a video of it!
https://drive.google.com/file/d/1uR5RxbeZiGwfyhGXCAV0MzoRZzkv33R8/view?usp=drive_link

I would be very grateful for any kind of help!
Cheers!

Edit: The sound is there, but for some reason it is very quiet. IRL the sound is much louder