When changing the checkbox value at admin/user/profile, to set it required and/or enabled for an user type i save and then ...

warning: pg_query(): Query failed: ERROR: argument of WHERE must be type boolean, not type smallint LINE 1: ...tion, show_descr, role FROM user_types_type WHERE enable_reg... ^ in /usr/share/drupal6/includes/database.pgsql.inc on line 139.

user warning: query: SELECT user_type_id, name, description, enable_registration, show_descr, role FROM user_types_type WHERE enable_registration ORDER BY name in /home/webroot/drupal/sites/all/modules/user_types/user_types.module on line 484.

warning: pg_query(): Query failed: ERROR: argument of WHERE must be type boolean, not type smallint LINE 1: ...tion, show_descr, role FROM user_types_type WHERE enable_reg... ^ in /usr/share/drupal6/includes/database.pgsql.inc on line 139.

user warning: query: SELECT user_type_id, name, description, enable_registration, show_descr, role FROM user_types_type WHERE enable_registration ORDER BY name in /home/webroot/drupal/sites/all/modules/user_types/user_types.module on line 484.

warning: pg_query(): Query failed: ERROR: argument of WHERE must be type boolean, not type smallint LINE 1: ...tion, show_descr, role FROM user_types_type WHERE enable_reg... ^ in /usr/share/drupal6/includes/database.pgsql.inc on line 139.

user warning: query: SELECT user_type_id, name, description, enable_registration, show_descr, role FROM user_types_type WHERE enable_registration ORDER BY name in /home/webroot/drupal/sites/all/modules/user_types/user_types.module on line 484.

warning: pg_query(): Query failed: ERROR: argument of WHERE must be type boolean, not type smallint LINE 1: ...tion, show_descr, role FROM user_types_type WHERE enable_reg... ^ in /usr/share/drupal6/includes/database.pgsql.inc on line 139.

user warning: query: SELECT user_type_id, name, description, enable_registration, show_descr, role FROM user_types_type WHERE enable_registration ORDER BY name in /home/webroot/drupal/sites/all/modules/user_types/user_types.module on line 484.

When i log out and try to register (having selected Hijack) i dont see any of the options i selected from profile, neither the option to select witch user type i want to be.

Is that maybe an incompatibility with postgresql ?