Why does the console give an error when clicking on NavLink?

Question

JavaScript

Each time a link (NavLink from react-router-dom) is clicked, the following error is displayed in the browser console:

Uncaught Error: only one instance of babel-polyfill is allowed
    at Object.<anonymous> (VM48221 content.js:28)
    at Object.<anonymous> (VM48221 content.js:28)
    at r (VM48221 content.js:1)
    at Object.<anonymous> (VM48221 content.js:29)
    at r (VM48221 content.js:1)
    at VM48221 content.js:1
    at VM48221 content.js:1
(anonymous) @ VM48275 content.js:28
(anonymous) @ VM48275 content.js:28
r @ VM48275 content.js:1
(anonymous) @ VM48275 content.js:29
r @ VM48275 content.js:1
(anonymous) @ VM48275 content.js:1
(anonymous) @ VM48275 content.js:1

What could be the problem?