MySQL connection error: (# 2002) 'php_network_getaddresses: getaddrinfo failed: Name or service not known'

Stack trace:
[ 0] __construct({Array( [idServicio] => 1784/1 [dbHost] => vsvia...})  @  /base/zfx/core/Config.php[207]
[ 1] loadConfigPlataforma()  @  /index.php[47]