For security reasons, this URL is only accessible using localhost (127.0.0.1) as the hostname

1. 1. login into your server using ssh or from lightsail ssh
2.  
3. 2. get default password

• Username: root (it’s the default)
• Password: GnKDCL5gcW5Q (Like this).Connect to Bitnami Lightsail through SSH on Lightsail Dashboard to access the command-line tool. Using cat bitnami_application_password to get the password, this is the same with the password you access to WordPress (based on Lightsail) for the first time.
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3. ### Modify the configuration file

Read more on at  https://sageuniversity.in/for-security-reasons-this-url-is-only-accessible-using-localhost-127-0-0-1-as-the-hostname/