Error 2 @ line 14 of /var/www/vhosts/emmport.com/httpdocs/inc_icore/app_common/mysqli_db_connect.php : mysqli_connect(): Server sent charset (255) unknown to the client. Please, report to the developers

Error 2 @ line 14 of /var/www/vhosts/emmport.com/httpdocs/inc_icore/app_common/mysqli_db_connect.php : mysqli_connect(): (HY000/2054): Server sent charset unknown to the client. Please, report to the developers