Can't submit my work

Tell us what’s happening:
Am done building a tribute page but not able to submit it. And when I try tapping on the am submit bottom, it doesn’t run for me

Your code so far
Responsive web development project

Your browser information:

User Agent is: Mozilla/5.0 (Linux; Android 7.1.1; TA-1032 Build/NMF26O) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.116 Mobile Safari/537.36.

Challenge: Build a Tribute Page

Link to the challenge:

Putting in a link should make the “I’ve completed this challenge” button enabled.