Black segments around image?

[Guest hvd]

Hi everyone! 

I need some help with the VinylMaster software and printing. I don't really have any experience with photoshop or anything of the sort. I started using vinyl/paper cutters when I bought a Silhouette Cameo 4 last year and that software is the only one I'm familiar with. I have a very basic understanding of file formats (which I think may be my issue?). Basically, I'm a newbie and I'm frustrated to tears.

I make sticker sheets for my Etsy shop and I have only ever worked with PNG files in the Silhouette software. When I try to print those same PNG files through VinylMaster, I keep getting these black lines/segments dotted around some of my images. It's super frustrating as it's noticeable and I'm not able to sell these. Does anyone know why this happens? 

[haumana 1,220]

If you're willing, post your file so others may inspect it to see what's going on.

[Guest hvd]

Here's the file. I had to recreate it because I had closed out of my other one without saving. I reprinted this morning and it seems to have minimal black spots, but I'd still like to know how to eliminate them entirely. 

CD001.vDoc