There could be several reasons this is happening. Follow the troubleshooting below and you should be able to determine the problem.
Make sure you have power. If you're unit plugs in, unplug it and plug in another item (a light or phone charger would be ideal). If there is no power, try resetting your GFI plug or check the breakers. If they are good you will need to consult an electrician.
Press and hold the up button on the remote. If the red light is not flashing, the remote needs new batteries. If it is, proceed to the next step.
If there is power, perform a 2/10/2 power cut. This should force the motor into programming mode and the awning should be a quick in and out 'jogging' motion, acknowledging that it's working. If the motor jogs, press the programming button on the back of the remote (the little red button. You may need a pen to press it). The motor should job again and now be paired with your remote.
If it is still not working, it's possible that the motor is in need of replacement. Contact Canadian Shade to perform further troubleshooting onsite and replace the motor if need be.