Haha yeah, it did occur to me that I bit off a little more than I could chew. The same error occurred when I tried using the single extruder though.

After the back and forth with QIDI customer service, they determined it's a problem with the main board so they're sending me a new one. Hopefully that fixes it.

I'm pretty sure I'll get S3D but I want to wait until the new board comes. I was using Makerware before, but even with the test files that QIDI sent me, the same thing happened. So it's doubtful it has to do with the slicer settings.