Hello Adrienne,
It's one of the best cars I've had in my life. Condition: take care of it, then this car will take care of you, with truly trouble-free operation and exceptional durability.
Check the fuse in the fuse box, to the left of the steering wheel. If it is ok, remove the wiper arm and check the operation without. Finally, you will need a multiimeter and check the electrics going to the actuator. Take a look at the schematics, it will explain a lot. Most likely, however, the power cord, routed in a rubber conduit next to the hinge of the large trunk lid, has worn and cracked. It keeps happening.