in some cases, you can try to pinch the residual adhesive on the label into a ball with your fingers. Check how sticky the residual adhesive on the label is. If it is really sticky, don't try this method, otherwise it will only make the situation worse.
hot water method. Our labels are usually stuck with self-adhesive tapes. As long as the temperature is hot enough, the glue will be very easy to tear off after it is melted again.