If you haven't already, trying turning off all your power to the rig and battery disconnect for a few mins to see if it will reset and clear.
If not, than likely the connection at the G6 module is loose. Do a search on the forums here for how to find it's location using the Spyder website and password for your manufacturer.
Least likely, but still possible, is the the module needs to be replaced.
Good luck! Been there and know how frustrating it can be!