Fatal error: Uncaught Error: Using $this when not in object context in /home/alpha/public_html/code/_Gateway.php:1 Stack trace: #0 /home/alpha/public_html/code/_Gateway.php(1): _Gateway::header('Content-Type: t...') #1 /home/alpha/public_html/index.php(350): _Gateway->main() #2 {main} thrown in /home/alpha/public_html/code/_Gateway.php on line 1