( ! ) Fatal error: Access level to LondonTheatreApi::$response must be protected (as in class Controller) or weaker in /var/www/html/core/LondonTheatreApi.php on line 154
Call Stack
#	Time	Memory	Function	Location
1	0.0001	403768	{main}( )	.../index.php:0
2	0.0092	2100344	require_once( '/var/www/html/init.php )	.../index.php:7
3	0.0435	3795912	Router->__construct( )	.../init.php:93
4	0.0479	3836040	Router->split_controller_url( $initial_url = '/en/comedy-tickets/shows/harry-potter-and-the-cursed-child-tickets/show-143568' )	.../Router.php:17
5	0.0721	4933584	Router->front_redirect_to_controller( [0 => 'comedy-tickets', 1 => 'shows', 2 => 'harry-potter-and-the-cursed-child-tickets', 3 => 'show-143568'] )	.../Router.php:176
6	0.1294	7988368	Events->event_page_new( )	.../Router.php:438
7	0.5371	8066280	spl_autoload_call( $class_name = 'LondonTheatreApi' )	.../Events.php:2242
8	0.5371	8066368	{closure:/var/www/html/init.php:3-16}( $class = 'LondonTheatreApi' )	.../Events.php:2242