Warning: Undefined variable $core_get in /usr/share/nginx/tradehub.ca/user/headerr.php on line 14

Fatal error: Uncaught Error: Call to a member function get_reply_ticket() on null in /usr/share/nginx/tradehub.ca/user/headerr.php:14
Stack trace:
#0 /usr/share/nginx/tradehub.ca/user/ticket.php(31): require_once()
#1 {main}
  thrown in /usr/share/nginx/tradehub.ca/user/headerr.php on line 14

Fatal error: Uncaught ArgumentCountError: mysqli_close() expects exactly 1 argument, 0 given in /usr/share/nginx/tradehub.ca/classes/core_login.php:741
Stack trace:
#0 /usr/share/nginx/tradehub.ca/classes/core_login.php(741): mysqli_close()
#1 [internal function]: core_login->__destruct()
#2 {main}
  thrown in /usr/share/nginx/tradehub.ca/classes/core_login.php on line 741