Site completely changed

Hi
I have recently updated Customizr (not pro) and my site syle, layout, fonts have all gone completely mad…
Almost every lovingly hand-crafted modification has disapeared from user view – though wierdly everything looks fine in when logged on as admin! I can’t figure it out – the pages being served to admin are hugely different to those being served to the public.
For instance the working (admin-side) page contains a seach widget that looks like this:
<aside id=”search-3″ class=”widget widget_search”><form role=”search” method=”get” id=”searchform” class=”searchform” action=”https://buckfastleigh.gov.uk/”&gt;
<div>
<label class=”screen-reader-text” for=”s”>Search for:</label>
<input value=”” name=”s” id=”s” type=”text”>
<input id=”searchsubmit” value=”Search” type=”submit”>
</div>
</form></aside>

…and the public-facing search widget looks like this:

<aside id=”search-3″ class=”widget widget_search”></aside>
<div class=”search-form__container ” data-czr-model_id=”searchform” data-czr-template=”templates/parts/modules/search/searchform”>
<form action=”https://buckfastleigh.gov.uk/&#8221; method=”get” class=”czr-form search-form” _lpchecked=”1″>
<div class=”form-group czr-focus”>
<label for=”s-59f09668d030d” id=”lsearch-59f09668d030d”><span>Search</span><i class=”icn-search”></i><i class=”icn-close”></i></label>
<input id=”s-59f09668d030d” class=”form-control czr-search-field czr-focusable” name=”s” value=”” aria-describedby=”lsearch-59f09668d030d” title=”Search …” type=”text”>
</div>
</form>
</div>

…as you can imagine these look utterly different!
I have tried switching off and clearing cache plugins to no avail. This is completely bizarre and unlike anything I have ever experienced in 10 years plus of designing and hosting WordPress websites so any clues would be welcome…

I am running on a WP multisite installation so please don’t ask me to disable all the plugins!

The page I need help with: [log in to see the link]