Warning: mysqli::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/tviw_admin/piwigo.irg.space/include/dblayer/functions_mysqli.inc.php on line 52

Warning: mysqli::__construct(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/tviw_admin/piwigo.irg.space/include/dblayer/functions_mysqli.inc.php on line 52

Warning: my_error(): Couldn't fetch mysqli in /home/tviw_admin/piwigo.irg.space/include/dblayer/functions_mysqli.inc.php on line 839

Warning: my_error(): Couldn't fetch mysqli in /home/tviw_admin/piwigo.irg.space/include/dblayer/functions_mysqli.inc.php on line 839

Piwigo encountered a non recoverable error

[mysql error ] 
Can't connect to server

#1	my_error /home/tviw_admin/piwigo.irg.space/include/common.inc.php(113)
#2	include_once /home/tviw_admin/piwigo.irg.space/picture.php(10)