Warning: mysqli::__construct(): php_network_getaddresses: getaddrinfo for mysql-r7nras.pg-s-rbvmmc.db.project.host failed: Name or service not known in /home/p-t6mte9/html/etienne-piwigo-fu381/include/dblayer/functions_mysqli.inc.php on line 52

Warning: Attempt to read property "errno" on null in /home/p-t6mte9/html/etienne-piwigo-fu381/include/dblayer/functions_mysqli.inc.php on line 839

Warning: Attempt to read property "error" on null in /home/p-t6mte9/html/etienne-piwigo-fu381/include/dblayer/functions_mysqli.inc.php on line 839

Piwigo encountered a non recoverable error

[mysql error ] 
php_network_getaddresses: getaddrinfo for mysql-r7nras.pg-s-rbvmmc.db.project.host failed: Name or service not known

#1	my_error /home/p-t6mte9/html/etienne-piwigo-fu381/include/common.inc.php(125)
#2	include_once /home/p-t6mte9/html/etienne-piwigo-fu381/picture.php(10)