My back windshield wiper just stopped and the middle of a rainstorm why

What is your question?

What would be the cause of the back windshield wiper on my Toyota Highlander 2008 why did it stop working would it be the motor I just replaced the windshield wiper so what else could it be and how much would something like that of course to fix

How long has your 2008 Toyota Highlander had this problem?

Started on June the 4th 20:21