cerate article error while installing or updating

Notice: Undefined index: create article content in user_role_grant_permissions() (line 3074 of F:\wamp\www\dropjobs\modules\user\user.module).
PDOException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'module' cannot be null: INSERT INTO {role_permission} (rid, permission, module) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2); Array ( [:db_insert_placeholder_0] => 4 [:db_insert_placeholder_1] => create article content [:db_insert_placeholder_2] => ) in user_role_grant_permissions() (line 3076 of F:\wamp\www\dropjobs\modules\user\user.module).