Random Quote Machine with server error

Tell us what’s happening:
Please help me solve to problem.

https://codesandbox.io/s/3q47vq4481 here I wrote a code, but finally couldnt destroy the error from server. please dont judge a design, I`ll fix it soon

Your code so far

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36.

Link to the challenge:

If you look at the browser’s console, it gives you a clue as to what the problem is:
It is in the shareButton.js You should be using className instead of class.