Warning: Undefined variable $domain in /users/linkuwant.com/htdocs/ads/ad_price.php on line 14

Fatal error: Uncaught TypeError: Unsupported operand types: string / string in /users/linkuwant.com/htdocs/ads/ad_price.php:16
Stack trace:
#0 /users/linkuwant.com/htdocs/ads/index.php(8): include()
#1 {main}
  thrown in /users/linkuwant.com/htdocs/ads/ad_price.php on line 16