Fix possible AttributeError when account-api is called over unix socket

[Sir-Photch]

Fixes #16396

Pull Request Checklist

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  (run the linters)

[erikjohnston]

Thanks!

[erikjohnston]

@Sir-Photch you need to sign off this PR, as per the contributing guide.

[Sir-Photch]

@erikjohnston I've sent you guys an email about that

[InezMc]

Private sign off has been recieved.

@Sir-Photch you need to sign off this PR, as per the contributing guide.

[erikjohnston]

Thanks both!