Try to reload the master code to your RC, and tether your OI to the robot.
http://www.ifirobotics.com/docs/frc-master-ver15.zip
This may or may not be legal... but the OI from last year is identical to the one this year. Maybe hit up Q&A to see if you can use yours from last year. The main purpose of not being able to use parts from previous years is because it can give you more performance, but since nothing has changed, and it is your OI, that doesn't have any customization for it, I think they may say yes.