My camera is [Canon EOS M50](https://asia.canon/en/consumer/eos-m50-body/product) The lens is [CANON EF-M 55-200MM F/4.5-6.3 IS STM](https://www.canon.co.uk/lenses/ef-m-55-200mm-f-4-5-6-3-is-stm-lens/) It makes a whining sound when I try to focus/auto focus. It tries to focus but it does not work. How should I go on about fixing it? I don't know much about cameras so I came here looking for help