Hi Katherine, welcome!
My first question - have you had the machine do a successful cut through SCAL? If not, then make sure you have the drivers downloaded.
Just like Gigi said - always check the learning center first, then come here for questions. Lots of information is covered in the LC.
Second - when you have already set your ORIGIN to the bottom right of your paper/media (somewhere close to the #3 reg mark) and then send it to cut, once it stops moving somewhere near the 1st registration mark, IMMEDIATELY tap one of the arrow keys (either on the keyboard or the screen). Then start moving /centering it over the dot on the reg mark. I have found this to be the best way for me, personally, to not have the machine / SCAL communication time out.
Now all of this is assuming you have already calibrated the machine. If you are working on calibrating, the same immediate keystroke response from you will still be beneficial.
If for some reason, you still cannot get it to move, and you have done all of the things listed above, I would uninstall SCAL and reinstall, making sure the correct drivers are downloaded as well, and try again. I have had to do this before, and it fixed my issue. (But I would try that as a last resort lol)
Let us know how it goes...