suddenly ckeditor became not working

hi
my websites version is v1.54, their ckeditor all suddenly became not working ,disappearing in the editing product page,and the backend's loading also become very slow.

if go to configuraton-my store-html editor,set it to "plain text", the backend's loading would become very fast.

here is china,so I guess it is because that China GV has done more blocking during the G20 conference.

what should I do? or how to make ckeditor locally,not need to depeed on internet?

thanks

now all work after non working for at least half day.

You could make the following changes, which stop using google, attempts to load jQuery from the jQuery server, and if that fails, then it loads one from your own server (which only works if you've put it on your server):

/admin/includes/ckeditor.php

[strike]<script type="text/javascript" src="//www.google.com/jsapi"></script>[/strike][strike]
<script type="text/javascript">if (typeof jQuery == 'undefined') google.load("jquery", "1");</script>[/strike]
<script type="text/javascript" src="../<?php echo DIR_WS_EDITORS ?>ckeditor/ckeditor.js"></script>

becomes:

<script src="https://code.jquery.com/jquery-1.12.4.min.js" integrity="sha256-ZosEbRLbNQzLpnKIkEdrPv7lOy9C27hHQ+Xp8a4MxAQ=" crossorigin="anonymous"></script>
<script type="text/javascript" src="../<?php echo DIR_WS_EDITORS ?>ckeditor/ckeditor.js"></script>

it works perfectly!
thanks so much ,I love zencart forum!