The starter is not engaging with the flex plate?

This is common when the battery gets low on charge, or it is bad or the starter has gone out. here is a guide to help you test the battery and I have included how to change the starter out as well:

https://www.2carpros.com/articles/car-battery-load-test

Here is a generic guide to help walk you through the steps with instructions below for your car:

https://www.2carpros.com/articles/how-to-replace-a-starter-motor

Check out the images (below). Please let us know what happens.