Warning: Undefined variable $pdo in /usr/home/dombek92/domains/files.daako.pl/public_html/api/inventory.php on line 4

Fatal error: Uncaught Error: Call to a member function exec() on null in /usr/home/dombek92/domains/files.daako.pl/public_html/api/inventory.php:4
Stack trace:
#0 {main}
  thrown in /usr/home/dombek92/domains/files.daako.pl/public_html/api/inventory.php on line 4