Why is vue not working?

Question

Vue.js

The problem is that when moving the code to the hosting, vue stopped displaying the component, or rather, in the #app element, the following code

<div id="app">
   <tags-input element-id="tags" :existing-tags="{ 
         @foreach ($tagsList as $tag)
             	'{{$tag->title}}': '{{$tag->title}}',
   @endforeach
         }"
         :typeahead="true"></tags-input>
</div>

Began to issue it, even #app would be deleted.
<!---->
However, if you write

<div id="app">
</div>

That div #app is alive
But at the same time everything is fine on LAN. At what errors in the console 0. Vue dev tools sees vuejs. The scripts are the same, any ideas what to do?