I have looked on the error log and the fault appears to be with the Grimlock for events calendar
[02-Dec-2023 11:34:29 UTC] PHP Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /home/berserke/public_html/wp-includes/post-template.php:324
Stack trace:
#0 /home/berserke/public_html/wp-includes/post-template.php(247): get_the_content()
#1 /home/berserke/public_html/wp-content/plugins/grimlock-the-events-calendar/templates/v2/src/views/single-event.php(98): the_content()
#2 /home/berserke/public_html/wp-content/plugins/the-events-calendar/src/functions/template-tags/general.php(42): include(‘/home/berserke/…’)
#3 /home/berserke/public_html/wp-content/plugins/the-events-calendar/src/Tribe/Views/V2/Template_Bootstrap.php(153): tribe_get_view()
#4 /home/berserke/public_html/wp-content/plugins/the-events-calendar/src/Tribe/Views/V2/Template_Bootstrap.php(231): Tribe\Events\Views\V2\Template_Bootstrap->get_v1_single_event_html()
#5 /home/berserke/public_html/wp-content/plugins/grimlock-the-events-calendar/templates/v2/src/views/v2/default-template.php(27): Tribe\Events\Views\V2\Template_Bootstrap->get_view_html()
#6 /home/berserke/public_html/wp-includes/template-loader.php(106): include(‘/home/berserke/…’)
#7 /home/berserke/public_html/wp-blog-header.php(19): require_once(‘/home/berserke/…’)
#8 /home/berserke/public_html/index.php(17): require(‘/home/berserke/…’)
#9 {main}
thrown in /home/berserke/public_html/wp-includes/post-template.php on line 324