Polygon Is Self Intersecting

Hi there! I am trying to print out imprint cutters but I often run into the message:

Error in getCutterMesh: Polygon is Self Intersecting!

What does this mean and how can I fix it? I am trying to make cookie cutters as Christmas gifts, but keep running into this problem with all kinds of different shapes.


Can you try the same cutter on beta.cookiecad.com and let me know if it works? If it still has the issue please share the link to the cutter, here or email it to support@cookiecad.