Erreur de template

Impossible to access an attribute ("url") on a null variable

/home/xchema5/public_html/hmhome/version2.hmresorts.com/craft/templates/pages/home.html(29)

17 
18 {% endblock %}
19 
20 
21 {% block content %}
22 
23 {% include '_includes/hero' %}
24   <div id="corner_logo_res" class="wow fadeIn" {{ wow5 }}>
25 <div style="" id="corner_loo" class="wow fadeIn" {{ wow5 }}>
26       <img  style="width: 100px;height: 100px;" src="http://henrymorgan.hmresorts.com/_hm/logo-marca-pais-grande-color-16.png" />
27 </div></div>
28 <div class="row m-0" id="home_offers">
29     <div class="col-xs-12 col-md-4 p-0 sec_pane wow fadeIn" {{ wow }} style="background-image:url('{{ specials.image.first().url }}');">
30         <!--a class="sec_content ol" data-toggle="modal" data-target="#gal_modal"
31            data-page="home" data-handle="specials" data-title="{# specials.galleryTitle #}"-->
32         <a class="sec_content ol" href="{{ siteUrl }}promos">
33             <h3 style="margin-top:50px;margin-bottom:5px;">{{ specials.label }}</h3>
34             <h1 style="margin-top:0;">{{ specials.price }}</h1>
35             <!--div class="gal_loading">
36                 <img class="gal_loading_img" id="gal_loading_specials" src="{# svg #}/rolling_64_w.svg" />
37             </div-->
38         </a>
39     </div>
40     <div class="col-xs-12 col-md-4 p-0 sec_pane wow fadeIn" data-wow-delay="0.6s" data-wow-duration="0.5s" style="background-image:url('{{ rooms.image.first().url }}');">
41         <a class="sec_content ol" href="{{ siteUrl }}rooms">
2024-03-19 07:45:06 Apache / Craft CMS 2.6.2960