[CA] Need help in uploading routes to Axiom

[argus]

I am new boater therefore I am very uncomfortable in going out on my boat without routes pre-planned and uploaded into the navigation unit. I recently upgraded my electronics to safer on the water. However, I cannot upload routes in the new Axiom that I just had installed in my boat. I am using OpenCpn to plan routes and save as *.gpx files. The Axiom using Lighthouse 3.2 will accept the waypoints that I have saved. However, when I attempted to upload a route, it fails and then when I check the Axiom, only the one of the waypoints from the route was uploaded. What can I do get routes upload into the Axiom?