Support Ticketing module schema update #7006 fails every time with PDOException: SQLSTATE[23000]: Integrity constraint violation

I updated to the latest version of Support Ticketing and the database update is failing every single time I attempt it. I happens when I run it alone; and whenever another module has an update needed, the Support Ticketing update shows on the list as well, and all other module updates are successful except for the Support Ticketing one.

Here's the error returned on the Update.php result page:

The following updates returned messages

support module

Update #7006

Failed: PDOException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'module' cannot be null: UPDATE {role_permission} SET module=:db_update_placeholder_0 WHERE ( (rid = :db_condition_placeholder_0) AND (permission = :db_condition_placeholder_1) ); Array ( [:db_update_placeholder_0] => [:db_condition_placeholder_0] => 4 [:db_condition_placeholder_1] => create support_ticket content ) in user_role_grant_permissions() (line 3034 of /path-to-drupal-folder/modules/user/user.module).

I have Support Ticketing disabled until this gets solved, but would like to get it going again. Plus, I worry about the potential havoc or fatal errors this might cause with other module updates each time they are needed. The only way to eliminate this would be to uninstall the module, which means I'd lose all my support tickets; so I hope someone can help with this soon.