Quick Deploy throwing error.

When I click "Enable Quick Deploy" the button changes state but an error is thrown.

"Failed to load resource: the server responded with a status of 500 (Internal Server Error)"

The repo is a public repository (forked from my own repo) on a friend's GitHub account. As far as I am aware, that shouldn't matter.

Any idea why this is happening? More importantly, how I can fix it.

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