error when going to page.

received this error when going to the webform page i created:

PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'nid' in 'where clause': SELECT COUNT(*) AS expression FROM (SELECT 1 AS expression FROM {webform_submissions} webform_submissions) subquery WHERE (nid = :db_condition_placeholder_0) AND (uid = :db_condition_placeholder_1) ; Array ( [:db_condition_placeholder_0] => 6 [:db_condition_placeholder_1] => 1 ) in webform_get_submission_count() (line 410 of /home/xxx/public_html/dev/sites/all/modules/webform-HEAD/includes/webform.submissions.inc).