Appreciate the details. We've checked the channel URL you've shared (https://m.youtube.com/channel/UCPOUvKf2fTi3VZ89I8BR46A …) and see that it's active. What happens when you try to sign in to your channel now? Are you receiving an error message? If yes, share a few screenshots.
Thanks for your continued patience while we were looking into this. We´ve heard back from our team and they´ve decided to keep your channel suspended due to violation of YouTube´s Community Guidelines and policies.