If you can't see any training modules on the Fleet Driver Plan page this is almost always because either the driver (or you) are not assigned to a group, or you've made a group and unassigned all the modules. It can happen when you delete a group that has drivers assigned to it and they are not assigned to any other group.

Assigning yourself to a group

Click on Manage in the top menu, Drivers and Courses then Manage Drivers next to the Fleet Driver Plan. This lists all your drivers. Find the driver in question and click Edit. Choose a group and save it.

Re-enabling modules in a group.

Check out this article on assigning modules. You need to be the account holder.