Hello Shane O !

The trouble was in the missing record in the `sys_options` table, so I've added it again with this MySQL command:

INSERT INTO `sys_options`(`category_id`, `name`, `caption`, `value`, `type`, `extra`, `check`, `check_error`, `order`) VALUES

(1, 'sys_session_lifetime_in_min', '_adm_stg_cpt_option_sys_session_lifetime_in_min', '129600', 'digit', '', '', '', 110);

and cleared the cache.