« MODx Parse Error »

MODx encountered the following error while attempting to parse the requested resource:
« Execution of a query to the database failed - Unknown column '40eitemb85411b8541309409_10000500b85411.13.tax' in 'where clause' »
      SQL: SELECT sc.id,sc.published,sc.parent FROM `u51731`.offs_ru__site_content sc LEFT JOIN `u51731`.offs_ru__document_groups dg on dg.document = sc.id WHERE (sc.id=40eitemb85411b8541309409_10000500b85411.13.tax ) AND (sc.privateweb=0) LIMIT 1
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Parser timing
  MySQL: 0,0554 s s(23 Requests)
  PHP: 0,0232 s s 
  Total: 0,0786 s s