PDOException when staff is null

[ehk20]

Getting this error in drupal 7.44:

PDOException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'staff' cannot be null: INSERT INTO {users_lookup_detail} (uid, name, staff, student) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3); Array ( [:db_insert_placeholder_0] => 61 [:db_insert_placeholder_1] => Real Name [:db_insert_placeholder_2] => [:db_insert_placeholder_3] => ) in lookup_update() (line 337 of /etc/drupal/7/sites/all/modules/drupal-lookup/lookup.module).

[JeebsUK]

Can you please provide some more information about what activity / activities you were trying to perform when the error occurs?

[ehk20]

It happens when you enable the module and someone (without a staff number) tries to Raven authenticate to the site.