SQL Error While Filtering

[dada732]

hello

i have the same problem after testing the job portal modified  on my website

SQL Error:
1054 - Unknown column 'tfd.xtjpcat' in 'where clause'
Query:
SELECT COUNT(tid) AS threads FROM mybbq6_threads t WHERE fid = '4' AND (t.visible IN (1)) AND tfd.`xtjpcat` IN ("surencheres")

i go to the "xt_forumdhooks.php" page and see the line

$dbt = '
static $done_t = false;
if(!$done_t && ($table == "threads" || $table == "threads t") && $fields == "COUNT(tid) AS threads") {
$done_t = true;
$table = "threads t LEFT JOIN {$this->table_prefix}threadfields_data tfd ON t.tid=tfd.tid";
$fields = "COUNT(t.tid) AS threads";
$conditions = xthreads_forumdisplay_filter_fixqcond($conditions);
$options = array("limit" => 1);
}
';

what's the problem?

cordially[/i]