Over the weekend, all of our AppVeyor builds suddenly stopped working.

Since we don’t perform development activities over the weekend—aside from some QA work—nothing has changed on our end that would affect every project globally.

The error we’re seeing is:
"Command executed with exception: The term 'octo' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again."

For context, we use the custom packaging build arguments as outlined in the documentation:
https://www.appveyor.com/docs/deployment/octopus-deploy/

Given the rollback required on your side last week, could this issue be related? Is there any potential impact on Octopus Deploy integrations?