Hello, I am very new to Laser Engraving (ortur laser master 2 20W) and Lightburn. I wanted to learn how to outline an easy project watching a YouTube video (trace image) and it started to actually burn (fire) the wood. I immediately stopped the laser. I followed the settings on the video, but again, I am so new to this. Can someone tell me what I am doing wrong to cause this, so I don’t return this whole set-up. I attached the picture.