Hello,
the fix is simple, just run the queries that were already posted at page #1 of this thread
ALTER TABLE `#__booking_price` ADD `adult_occupancy_price` text NOT NULL
ALTER TABLE `#__booking_price` ADD `child_occupancy_price` text NOT NULL
ALTER TABLE `#__booking_reservation_items` ADD `adult_occupancy` int(11) NOT NULL DEFAULT 0
ALTER TABLE `#__booking_reservation_items` ADD `child_occupancy` int(11) NOT NULL DEFAULT 0
ALTER TABLE `#__booking_subject` ADD `max_adult_occupancy` int(11) NOT NULL DEFAULT 0
ALTER TABLE `#__booking_subject` ADD `max_child_occupancy` int(11) NOT NULL DEFAULT 0
ALTER TABLE `#__booking_reservation_type` ADD `dynamic_gap_time` tinyint(1) NOT NULL DEFAULT 0
ALTER TABLE `#__booking_price` ADD `deposit_type` TINYINT NOT NULL DEFAULT 1
ALTER TABLE `#__booking_price` ADD `deposit_include_supplements` TINYINT NOT NULL DEFAULT 0
ALTER TABLE `#__booking_price` ADD `time_range` TINYINT NOT NULL DEFAULT 0
ALTER TABLE `#__booking_subject` ADD `featured` TINYINT( 1 ) NOT NULL AFTER `state`
Just make sure to replace the #_ with a prefix used in your Joomla tables.