VEX Robot No Longer Listens To Code

I am a pretty experienced robot builder and coder, and for some reason my robot no longer carries out the code that I program on it. All of the code worked perfectly then just somehow stopped working. Now my robot just goes straight forever without stopping. Anyone have any ideas on how to fix that?

You should download a copy of the VEXOS utility to a Windows laptop. Use it to reflash the brain to get it back to the basic code. If it does driver control then download your code and try it again.