Hi,
On some sites the WP database update function does not work properly. I have still not found why this is happening.
There are two options to solve this issue.
Option 1.
Note down the settings of the plugin.
Use the XML export function. This function retrieves all the booking and price information.
Deactive the plugin and delete it.
Download the latest version.
Install this version and activate.
Set all the settings of the plugin as noted down earlier.
Import the XML file.
If you have access to phpMyAdmin option 2 is an alternative.
Option 2.
Go in phpMyAdmin to table prefix_availabilitybooking_bookings.
Go the structure tab and add the column uid
varchar(500) NOT NULL DEFAULT ”
Go to the table prefix_options and search for the option AvailabilityBooking_Uid_Updated and delete this option.
Go the admin menu plugins, deactive and activate the plugin again.
Sorry for the inconvenience,
Jan