media.php line 267

It may be that the file is corrupt. Please replace all WP core files: https://wordpress.org/support/article/updating-wordpress/#step-1-replace-wordpress-files

You can skip that step for now.

I see

Warning: require(/home/1/l/larsnygaard/www/scooterlars/wp-includes/rest-api/endpoints/class-wp-rest-block-types-controller.php): failed to open stream: No such file or directory in /home/1/l/larsnygaard/www/scooterlars/wp-settings.php on line 256

Fatal error: require(): Failed opening required '/home/1/l/larsnygaard/www/scooterlars/wp-includes/rest-api/endpoints/class-wp-rest-block-types-controller.php' (include_path='.:/usr/share/php') in /home/1/l/larsnygaard/www/scooterlars/wp-settings.php on line 256

Are you sure you uploaded all the files?