We have created and used this module internally when we need to debug on a site without interrupting the front-end users.
The module makes it possible for you to work and debug on your active store based on your IP-address. Your customers will see a normal functional shop without any error messages. While you can read the errors. This is all possible because the module works based on the given IP-address.
The module requires minimal configurations. You simply add your current IP-Address and you are good to go.
From the module page, you can activate or deactivate debug mode.
And from the performance page, you now have an extra button for advanced debugging.
Check it out here: Private debug mode module
