MySQL with the administrator details. Please check and try again. Error Message = [SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: No such host is known. ]

i am facing this error could some one help me that how to fix this error
i am using xibo cms 1.8.2

It’s telling you that it can’t find in DNS an entry for “local”

It sounds like an unlikely name to be honest?

Note also you’ve got “web” in the URL, which means you’ve not configured your environment correctly. Please check the manual which describes what is required: