DDJ-SB3 channel 1 volume slider broken (See video)

Hi, Recently I’ve noticed that when I slide up the channel 1 volume slider the audio output cuts out and goes quite and muffled until it’s reached the maximum, then if you move it anymore it’ll happen again. https://drive.google.com/file/d/1j7VLtypbCHIfBWnn_6j8r46iHEzsAVwJ/view?usp=drivesdk I was wondering if there was anyway to fix this? Thanks