I need help figuring out what is wrong with my code as I simply can not get past the nav-link class issue.
you have various syntax errors that may be causing that test to not pass
use the Analyze HTML tool in codepen:

https://codepen.io/brendanpettis/pen/KKVVBxL
Here is a fork of your project where I added the closing tags. Notice all tests pass. You were almost there 