you have 15 a elements, when the requirements expect it to be 14. You have probably a wrong class somewhere or something like that. You will need to look through all your code to check that all the classes are in the right place and that nothing have the class when it shouldn’t have it.
check also the other error, where it says as below. This is pretty simple fix, and will clear two of the tests.
12. Each element with the class of “nav-link” should contain text that corresponds to the text within each (e.g. if you have a “Hello world” section/header, your navbar should have an element which contains the text “Hello world”).
Check that these headers have corresponding .nav-link elements and be mindful of case! : INTRODUCTION