Continue printing after M600 command

Hello everyone, I would like to do a color change. I use the Prusa Slicer and the Anycubic Mega S with Marlin as my printer. I have set the color change in the Prusa Sclicer and the printer also moves into a changing position on the plane and maintains the temperature and feeds the filament back. So far so good. But I can't start printing again now. Neither via the display on the printer nor via Octoprint. Can anyone help? Anebi a few