Couldn't insert row in forums table

Como bien indica la foto me dice que hay un error aquí, justo donde dice: "Couldn't insert row in forums table" (es la línea 406):
Código: Seleccionar todo
// There is no problem having duplicate forum names so we won't check for it.
$sql = "INSERT INTO " . FORUMS_TABLE . " (forum_id, forum_name, cat_id, forum_desc, forum_order, forum_status, forum_icon, prune_enable" . $field_sql . ")
VALUES ('" . $next_id . "', '" . str_replace("\'", "''", $HTTP_POST_VARS['forumname']) . "', " . intval($HTTP_POST_VARS[POST_CAT_URL]) . ", '" . str_replace("\'", "''", $HTTP_POST_VARS['forumdesc']) . "', $next_order, " . intval($HTTP_POST_VARS['forumstatus']) . ", '" . str_replace("\'", "''", $HTTP_POST_VARS['forumicon']) . ", '" . intval($HTTP_POST_VARS['prune_enable']) . $value_sql . ")";
if( !$result = $db->sql_query($sql) )
{
message_die(GENERAL_ERROR, "Couldn't insert row in forums table", "", __LINE__, __FILE__, $sql);
}