I've looked into this, and it's a bug in PHD2. I was quite surprised because this is old code, but I think we must have changed a folder-naming convention sometime in the past and missed this dependency. Whatever the reason, we've fixed the problem and the correction will be part of the next dev release. The policy is for all of these "CameraFrames" diagnostic directories to be removed after 30 days. We intentionally log AutoFind failures because they are a common source of questions and we want to have the necessary data to provide support without asking people to enable a diagnostic setting and then try to replicate the incident.
Thanks for letting us know about the problem.
Bruce