Could code cause a communications error?

[gyroscopeRaptor]

We had an issue today of communication. The robot would disconnect after a few seconds no matter what. We updated and used the defaut myRobot file and it is fixed. The cause is believed to be jointly a corrupted v27 update and possibly an error in our program, which is here.

Is it possible for a program to create an issue like this, and if so, is our program at fault? The program is a work in progress, but if you see any other mistakes please point them out.