Hi there, @LauraKilborn ...
There's no guarantee this will work, but there's a somewhat known/somewhat unknown trick called the "undelete" trick that might work for you. Go to your course "Home" page, and then add the word "undelete" to the end of your URL. So, you might have something like:
https://SchoolName.instructure.com/courses/12345/undelete ...where SchoolName is your own school's name
When you get to the "undelete" page, you might see your module listed there somewhere, and you can click the "restore" button to try and restore it to your course. Check out this blog post for more details.
Undeleting things in Canvas
Hope this helps!