No available tickets and seats not shown in layout (https://esport.spwn.dk/index.php/bookingspwn/)

Hello,I've set up your plugin as described in the guide on https://kenzap.blog/how-to-create-custom-concert-hall-in-wordpress-with-seat-reservation/ with product ID in block, code in layout, MyTicket fields in woo-productHowever, the button says 'no available tickets' and no seats are shown on top of the layout on the frontend.I tested the layout on multiple domains and wp-installs, it's definitely not a plugin conflict.Nothing logged in wp debug log.My domain error log on one domain only showed this, if it's any help:[02-Feb-2022 08:27:07 Europe/London] PHP Warning: Illegal string offset 'fields' in /home/danielje/public_html/wp-content/plugins/myticket-events/inc/class-customizer-repeater-control.php on line 162[02-Feb-2022 08:27:07 Europe/London] PHP Warning: Illegal string offset 'title' in /home/danielje/public_html/wp-content/plugins/myticket-events/inc/class-customizer-repeater-control.php on line 162[02-Feb-2022 08:27:07 Europe/London] PHP Warning: Illegal string offset 'value' in /home/danielje/public_html/wp-content/plugins/myticket-events/inc/class-customizer-repeater-control.php on line 162[02-Feb-2022 08:27:07 Europe/London] PHP Warning: Illegal string offset 'fields' in /home/danielje/public_html/wp-content/plugins/myticket-events/inc/class-customizer-repeater-control.php on line 162[02-Feb-2022 08:27:07 Europe/London] PHP Warning: Illegal string offset 'type' in /home/danielje/public_html/wp-content/plugins/myticket-events/inc/class-customizer-repeater-control.php on line 162[02-Feb-2022 08:27:07 Europe/London] PHP Warning: Illegal string offset 'value' in /home/danielje/public_html/wp-content/plugins/myticket-events/inc/class-customizer-repeater-control.php on line 162[02-Feb-2022 08:27:07 Europe/London] PHP Warning: Illegal string offset 'fields' in /home/danielje/public_html/wp-content/plugins/myticket-events/inc/class-customizer-repeater-control.php on line 162[02-Feb-2022 08:27:07 Europe/London] PHP Warning: Illegal string offset 'key' in /home/danielje/public_html/wp-content/plugins/myticket-events/inc/class-customizer-repeater-control.php on line 162[02-Feb-2022 08:27:07 Europe/London] PHP Warning: Illegal string offset 'value' in /home/danielje/public_html/wp-content/plugins/myticket-events/inc/class-customizer-repeater-control.php on line 162[02-Feb-2022 08:27:07 Europe/London] PHP Warning: Illegal string offset 'fields' in /home/danielje/public_html/wp-content/plugins/myticket-events/inc/class-customizer-repeater-control.php on line 162[02-Feb-2022 08:27:07 Europe/London] PHP Warning: Illegal string offset 'required' in /home/danielje/public_html/wp-content/plugins/myticket-events/inc/class-customizer-repeater-control.php on line 162[02-Feb-2022 08:27:07 Europe/London] PHP Warning: Illegal string offset 'value' in /home/danielje/public_html/wp-content/plugins/myticket-events/inc/class-customizer-repeater-control.php on line 162Any ideas how to fix the seats and tickets not shown on frontend?Best regards, Daniel