Fatal error: Uncaught Error: Undefined constant Jetpack_AI_Helper::GUIDELINES_BANNER_DISMISSED_META_KEY in /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-content/plugins/jetpack/_inc/lib/core-api/wpcom-endpoints/class-wpcom-rest-api-v2-endpoint-guidelines-banner-dismissed.php:40
Stack trace:
#0 /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-content/plugins/jetpack/_inc/lib/core-api/load-wpcom-endpoints.php(49): [constant expression]()
#1 /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-content/plugins/jetpack/_inc/lib/core-api/wpcom-endpoints/class-wpcom-rest-api-v2-endpoint-guidelines-banner-dismissed.php(130): wpcom_rest_api_v2_load_plugin('WPCOM_REST_API_...')
#2 /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-content/plugins/jetpack/_inc/lib/core-api/load-wpcom-endpoints.php(32): require_once('/customers/4/b/...')
#3 /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-content/plugins/jetpack/_inc/lib/core-api/load-wpcom-endpoints.php(59): wpcom_rest_api_v2_load_plugin_files('wpcom-endpoints...')
#4 /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-includes/class-wp-hook.php(353): load_wpcom_rest_api_v2_plugin_files('')
#5 /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-includes/class-wp-hook.php(377): WP_Hook->apply_filters(NULL, Array)
#6 /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-includes/plugin.php(523): WP_Hook->do_action(Array)
#7 /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-settings.php(630): do_action('plugins_loaded')
#8 /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-config.php(114): require_once('/customers/4/b/...')
#9 /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-load.php(50): require_once('/customers/4/b/...')
#10 /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-blog-header.php(13): require_once('/customers/4/b/...')
#11 /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/index.php(17): require('/customers/4/b/...')
#12 {main}
  thrown in /customers/4/b/9/thornhillsgardening.co.uk/httpd.www/wp-content/plugins/jetpack/_inc/lib/core-api/wpcom-endpoints/class-wpcom-rest-api-v2-endpoint-guidelines-banner-dismissed.php on line 40