« 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 '33bbibi7b854dmil_si_tr_set_za500b.tax' in 'where clause' »
      SQL: SELECT 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=33bbibi7b854dmil_si_tr_set_za500b.tax ) AND (sc.privateweb=0) LIMIT 1
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Parser timing
  MySQL: 0,0038 s s(6 Requests)
  PHP: 0,0180 s s 
  Total: 0,0217 s s