Error code 706 relates to a license/device mismatch and more often occurs on Windows Laptop installations of CoPilot after a major hardware or software update has taken place on the device.
To clear the error and reset the product key, please submit a request through the CoPilot GPS Support Center. Type Error Code 706 in the subject line and include your product key in the description.
You can find your product key in the app by going to Settings > About CoPilot. Your request will answered as soon as possible.
After the product key has been reset, CoPilot can be reinstalled on the device. Go here for information on how to re-install CoPilot.