Fatal error: Uncaught Error: Undefined constant "JSON_SORT_KEYS" in /var/www/html/includes/SEOHeaders.php:79
Stack trace:
#0 /var/www/html/index.php(121): SEOHeaders::generateWeatherHash()
#1 /var/www/html/includes/router.php(35): {closure}()
#2 /var/www/html/index.php(422): Router->dispatch()
#3 {main}
thrown in /var/www/html/includes/SEOHeaders.php on line 79