[Thu Jun 14 10:16:31 2018] [crit] [client 192.168.7.223] configuration error: couldn't perform authentication. AuthType not set!: / [Thu Jun 14 10:16:31 2018] [crit] [client 192.168.7.223] configuration error: couldn't perform authentication. AuthType not set!: /favicon.ico [Thu Jun 14 10:16:31 2018] [crit] [client 192.168.7.223] configuration error: couldn't perform authentication. AuthType not set!: /favicon.ico [Thu Jun 14 10:16:34 2018] [crit] [client 192.168.7.223] configuration error: couldn't perform authentication. AuthType not set!: / [Thu Jun 14 10:16:39 2018] [crit] [client 192.168.7.223] configuration error: couldn't perform authentication. AuthType not set!: / [Thu Jun 14 10:16:39 2018] [crit] [client 192.168.7.223] configuration error: couldn't perform authentication. AuthType not set!: /favicon.ico [Thu Jun 14 10:16:39 2018] [crit] [client 192.168.7.223] configuration error: couldn't perform authentication. AuthType not set!: /favicon.ico

The WordPress installation error is the most common problem while installing the WordPress and the server error is also the happened with Google support and it got the solution to resolve this and the error can be solved by doing some changes in the installation process.