Cannot read property 'removeEventListener' of null - Error explantation.

[JP20182018]

I was getting two errors:

1. "Cannot read property ‘removeEventListener’ of null "

2. and then “pushPage is already running” (broke navigation).

With some digging I found sort of an obscure post that mentioned “setTimeout”: https://community.onsen.io/topic/3303/uncaught-in-promise-pushpage-is-already-running/2

I gave it a go and inserted a setTimeout to my function and everything works now. See below:

function editItem(getName, getDetails) {
  document.querySelector('#myNavigator').pushPage('page4.html').then(setTimeout (function(){
    var noteName = document.getElementById('note-name');
    var noteDetails = document.getElementById('note-details');
    noteName.innerHTML = getName;
    noteDetails.innerHTML = getDetails;
  }), 5000);
}

Now it seems to work better. However, after a couple of clicks I get the errors again. Can anybody lead me in the right direction so I can research this better. Thanks.