If you or your driver can't see any modules 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 the driver to a group

Click on Manage > Drivers and Courses then Course and driver options > Manage Drivers. 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.