SQLSTATE[HY000] [2002] Connection refused<br />
<b>Notice</b>:  Undefined variable: db in <b>/var/www/vhosts/refmak.net/httpdocs/index.php</b> on line <b>6</b><br />
<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function query() on null in /var/www/vhosts/refmak.net/httpdocs/index.php:6
Stack trace:
#0 {main}
  thrown in <b>/var/www/vhosts/refmak.net/httpdocs/index.php</b> on line <b>6</b><br />