I'll remind you that you and Morrus are admins here, and the rest of us aren't. It's possibly an access issue.
I'm not an admin, and search has not given me these errors since you folks started reporting the errors.
And, it is unlikely to be an access/rights issue unless one of the admins changed access rights shortly before you guys noted the errors. It also seems to be just a couple of you. Have you tried the usual "clear cache and cookies" stuff?