Warning: require(./cfg-db.inc.php): Failed to open stream: No such file or directory in /home/httpd/vhosts/arcus-caeli.ch/subdomains/static/httpdocs/lib-guestbook.inc.php on line 3

Warning: require(./cfg-db.inc.php): Failed to open stream: No such file or directory in /home/httpd/vhosts/arcus-caeli.ch/subdomains/static/httpdocs/lib-guestbook.inc.php on line 3

Fatal error: Uncaught Error: Failed opening required './cfg-db.inc.php' (include_path='.:/usr/share/pear:/usr/share/php') in /home/httpd/vhosts/arcus-caeli.ch/subdomains/static/httpdocs/lib-guestbook.inc.php:3
Stack trace:
#0 /home/httpd/vhosts/arcus-caeli.ch/subdomains/static/httpdocs/guestbook.php(3): require()
#1 {main}
  thrown in /home/httpd/vhosts/arcus-caeli.ch/subdomains/static/httpdocs/lib-guestbook.inc.php on line 3