Unknown column 'fr' in 'where clause'

ErrorWL::__set_state(array(
   'code' => 1,
   'message' => 'Unknown column \'fr\' in \'where clause\'',
   'string' => '',
   'file' => '/home/www/objets/class.mysql.php',
   'line' => 246,
   'trace' => 
  array (
    0 => 
    array (
      'file' => '/home/www/objets/class.mysql.php',
      'line' => 171,
      'function' => 'pdo_req',
      'class' => 'mysql',
      'type' => '->',
      'args' => 
      array (
        0 => 'SELECT tri2 FROM webliens WHERE cle_d_libell = 100123 AND tri1 = fr ',
        1 => false,
      ),
    ),
    1 => 
    array (
      'file' => '/home/www/objets/class.set_wl.php',
      'line' => 3777,
      'function' => 'req',
      'class' => 'mysql',
      'type' => '->',
      'args' => 
      array (
        0 => 'SELECT tri2 FROM webliens WHERE cle_d_libell = 100123 AND tri1 = fr ',
      ),
    ),
    2 => 
    array (
      'file' => '/home/www/objets/class.vsite.php',
      'line' => 1140,
      'function' => 'get_code_lang',
      'class' => 'set_wl',
      'type' => '->',
      'args' => 
      array (
      ),
    ),
    3 => 
    array (
      'file' => '/home/www/objets/class.vsite.php',
      'line' => 11545,
      'function' => 'set_url',
      'class' => 'vsite',
      'type' => '->',
      'args' => 
      array (
        0 => '50002000087',
        1 => 
        array (
          'titre' => 'Notre entreprise',
          'tag' => 'page',
        ),
      ),
    ),
    4 => 
    array (
      'file' => '/home/www/objets/class.vsite.php',
      'line' => 3081,
      'function' => 'aff_elt',
      'class' => 'vsite',
      'type' => '->',
      'args' => 
      array (
        0 => 
        array (
          'tag' => 'a',
          'id' => 'ID60d0667b62331',
          'value' => 
          array (
            0 => 
            array (
              'value' => 'A0380150002000470',
            ),
            1 => 
            array (
              'value' => '
', ), ), 'href' => '50002000087', 'parent' => 'ID60d065b2f3314', ), 1 => '50002000092', 2 => array ( ), ), ), 5 => array ( 'file' => '/home/www/objets/class.vsite.php', 'line' => 9924, 'function' => 'set_cell', 'class' => 'vsite', 'type' => '->', 'args' => array ( 0 => array ( 'id' => 'ID60d065b2f3314', 'contenu' => array ( 0 => array ( 'tag' => 'h2', 'id' => 'ID60d066752e70d', 'value' => array ( 0 => array ( 'value' => 'A0380130002021056', ), ), ), 1 => array ( 'tag' => 'a', 'id' => 'ID60d0667b62331', 'value' => array ( 0 => array ( 'value' => 'A0380150002000470', ), 1 => array ( 'value' => '
', ), ), 'href' => '50002000087', ), 2 => array ( 'tag' => 'a', 'id' => 'ID60d0667e5a596', 'value' => array ( 0 => array ( 'value' => 'A0380130002011221', ), 1 => array ( 'value' => '
', ), ), ), 3 => array ( 'tag' => 'a', 'id' => 'ID60d066800660b', 'value' => array ( 0 => array ( 'value' => 'A0380130002017503', ), 1 => array ( 'value' => '
', ), ), ), ), 'css' => array ( 0 => array ( 'prop' => 'padding', 'cote' => 'left', 'value' => '2', 'type' => 'vw', ), ), 'cle_bloc' => '50002000092', ), 1 => array ( 'parent' => 'ID60d065b2f3314', ), ), ), 6 => array ( 'file' => '/home/www/objets/class.vsite.php', 'line' => 11483, 'function' => 'aff_table_html', 'class' => 'vsite', 'type' => '->', 'args' => array ( 0 => '50002000092', ), ), 7 => array ( 'file' => '/home/www/objets/class.vsite.php', 'line' => 11492, 'function' => 'aff_elt', 'class' => 'vsite', 'type' => '->', 'args' => array ( 0 => array ( 'tag' => 'table', 'id' => 'ID60d073fed5613', 'value' => '50002000092', ), 1 => '50002000066', ), ), 8 => array ( 'file' => '/home/www/objets/class.vsite.php', 'line' => 3280, 'function' => 'aff_elt', 'class' => 'vsite', 'type' => '->', 'args' => array ( 0 => array ( 'tag' => 'footer', 'id' => 'ID60d0409aa919f', 'value' => array ( 'tag' => 'table', 'id' => 'ID60d073fed5613', 'value' => '50002000092', ), ), 1 => '50002000066', 2 => array ( 'first' => true, ), ), ), 9 => array ( 'file' => '/home/www/objets/class.vsite.php', 'line' => 4774, 'function' => 'set_bloc', 'class' => 'vsite', 'type' => '->', 'args' => array ( 0 => '50002000066', 1 => array ( 'first' => true, ), ), ), 10 => array ( 'file' => '/home/www/objets/class.vsite.php', 'line' => 3170, 'function' => 'multi_affiche', 'class' => 'vsite', 'type' => '->', 'args' => array ( 0 => '50002000066', 1 => array ( 'first' => true, ), ), ), 11 => array ( 'file' => '/home/www/objets/class.vsite.php', 'line' => 11885, 'function' => 'set_body', 'class' => 'vsite', 'type' => '->', 'args' => array ( ), ), 12 => array ( 'file' => '/home/www/hygiatec.fr/index.php', 'line' => 5, 'function' => 'affiche_site', 'class' => 'vsite', 'type' => '->', 'args' => array ( 0 => 50002000062, ), ), ), 'previous' => NULL, 'test' => NULL, 'slibell' => NULL, ))