The error messages no longer comes with PHP 7.4. I hope I get a version of SP Booking that also works with PHP 8, even if my Subscription has already expired?
However, the preloader does not yet work as it should, and he clearly reacts to the links of the SP Booking component. For example, if you click on "Accomodations" from SP Booking, then on "Norrland" and then "Back", the preloader blocks the display of the page. Every time you visit an SP Booking page for the second time, this is the case. Only a "hard reload" will than help ... All other menu items with links to Pagebuilder pages also with the Preloader works normaly .