Warning: mysqli_connect(): (HY000/1130): Host '10.27.3.19' is not allowed to connect to this MariaDB server in /customers/3/2/7/rugbyclubhamme.be/httpd.www/common/opendb.php on line 2

Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, bool given in /customers/3/2/7/rugbyclubhamme.be/httpd.www/classes/parameters.biz.class.php:16
Stack trace:
#0 /customers/3/2/7/rugbyclubhamme.be/httpd.www/classes/parameters.biz.class.php(16): mysqli_query(false, 'SELECT * FROM p...')
#1 /customers/3/2/7/rugbyclubhamme.be/httpd.www/classes/parameters.biz.class.php(11): ParamBiz->getParameters()
#2 /customers/3/2/7/rugbyclubhamme.be/httpd.www/classes/startup.php(9): ParamBiz->__construct(false)
#3 /customers/3/2/7/rugbyclubhamme.be/httpd.www/kalender.php(2): require_once('/customers/3/2/...')
#4 {main}
  thrown in /customers/3/2/7/rugbyclubhamme.be/httpd.www/classes/parameters.biz.class.php on line 16