Thanks for the details. When an account is suspended, an email is sent to the user explaining the reason. Try checking your spam/junk folders for the mail. Also, if you believe that this was an error, you can appeal the decision by clicking here: https://yt.be/help/kg2J
Thanks for the channel URL. We're passing this along to our Policy team for a second look. We'll get back to you once we know more. Appreciate your patience in the meantime.