WordPress 6.0.3 Error

Hi,
Trying to install your plugin to test if it is suitable for a site I am developing and in the setting page I cannot really see anything due to errors down the page. At the top of the page is the following error message:

( ! ) Warning: Invalid argument supplied for foreach() in C:\wamp64\www\wp603\wp-content\plugins\court-reservation\admin\partials\courtres-settings.php on line 512
Call Stack
#	Time	Memory	Function	Location
1	0.0001	366576	{main}( )	...\admin.php:0
2	0.1272	4689128	do_action( $hook_name = 'toplevel_page_courtres' )	...\admin.php:259
3	0.1272	4689504	WP_Hook->do_action( $args = [0 => ''] )	...\plugin.php:476
4	0.1272	4689504	WP_Hook->apply_filters( $value = '', $args = [0 => ''] )	...\class-wp-hook.php:331
5	0.1272	4690632	Courtres_Admin->load_admin_settings( '' )	...\class-wp-hook.php:307
6	0.1273	4693416	require_once( 'C:\wamp64\www\wp603\wp-content\plugins\court-reservation\admin\partials\courtres-settings.php )	...\class-courtres-admin.php:706

The site is locally installed hence no url to show you sorry.