You’re going to need to be more specific.
Are you using a piece of provided art?
If no, is this art that has engraved correctly before?
What settings are you using?
What material are you using?
Can you post your art?
Can you post a picture of your results indicating where you see a problem?
Art will be brightly coloured when it’s in the workable area - and dark red dashed lines when it’s outside it. Move your art until it’s all brightly coloured. If you’re engraving you can lower the speed in order to increase the available area.