Strange engraver "artefacts"

Hei. I didnt know where to put this subject

On beginning sorry for my simple english
" Thats not mine origin language"

The point is…

I got the machine xtool d1 5w

I was found how do all things around but when I use laser I get something like that…
What I can / supost to do to get out from it?

Xtool d1 5w
Air assist
Extension kit
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