<p dir="auto">only after landing</p>
<p dir="auto">//! moment-timezone.js<br>
//! version : 0.5.0<br>
//! author : Tim Wood<br>
//! license : MIT<br>
//! github.com/moment/moment-timezone</p>
<p dir="auto">vendor-main-00eff8238f.js:formatted:17423Uncaught TypeError: Cannot read property 'join' of null<br>
function i(a) {<br>
var b = a.toTimeString()<br>
, c = b.match(/(.+)/);<br>
c = c &amp;&amp; c[0] ? c[0].match(/[A-Z]/g).join("") : b.match(/[A-Z]{3,5}/g)[0], //error line</p>
<p dir="auto">I cann't press the button "Submit and go to my next challenge (ctrl + enter)". But if I clicked I only see the infinite loading. How to solve this problem?<br>
<a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/15948159/12712716/62a3c88c-c8db-11e5-9556-7183e96aa60b.PNG"><img src="https://cloud.githubusercontent.com/assets/15948159/12712716/62a3c88c-c8db-11e5-9556-7183e96aa60b.PNG" alt="default" style="max-width: 100%;"></a></p>