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Syntax Error Found

Unknown "filterCollection" filter

File: /www/htdocs/v075328/service.brockert.de/blog/post.php
Line: 143 of 188 total

Context

    138 |    </div>   
    139 | <h3 class='   '>Related Posts</h3> 
    140 |   {% set filters = [ {property:"draft", operator:"isfalse"}, {property:"date", operator:"before", value:"now"} ] %} {% set sorts = [{property:"date", reverse:true}] %}  {% set filters = filters | merge([  { property : "tags", operator : "equal", value    :  post.tags, logic    : "or", },  
    141 |   { property : "id", operator : "not-equal", value    :  post.id, logic    : "or", },  
    142 | ]) %}   {% set sorts = sorts | merge([  {  shuffle : true  },  
>>> 143 | ]) %}   {% set stacks_in_52 = cms.objects("blog") | filterCollection(filters) | sortCollection(sorts) %}    {% set currentPage = getData.p ? getData.p | int : 1 %} {% set pageLimit = 3 %} {% set pageKey = 'p' %} {% set totalObjects = stacks_in_52 | length %} {% set stacks_in_52 = stacks_in_52 | paginate(3) %}   {% if stacks_in_52 | length > 0 %} {% cmsgrid stacks_in_52 from 'blog' with 'stacks_in_52 grid gap-xl padding-lg    ' as 'article' %}  <a href="{{ cms.objectUrl('blog', object.id) | default('#') }}" title="{{ object.title }}" class="link-container">   {% include 'grid/blog.twig' %}   </a>  {% endcmsgrid %} {% else %}  {% endif %}  
    144 |  </div>  
    145 |  </div> </div> 
    146 |   </div>   </div>   
    147 | 
    148 | <!--  -->