“Frame with ID 0 is showing error page” came from Chrome’s error screen. It does not mean the business website is offline. Placework now reports the actual connection error and retries temporary failures twice.
This is a Chrome setting you control. The extension cannot change DNS settings automatically. On a managed device the setting may be controlled by your administrator.
For a timeout or reset, reconnect and retry. For a certificate warning or access challenge, inspect the website normally; Placework does not bypass those screens.