PSA Cert Check Question

There is a Jimmy Carter autographed book comming up at an auction with the PSA/DNA Cert Number # D46839. Problem is, when I go to the PSA cert check page and type it in, it says: "PSA/DNA Certification Number D46839 was not found in the PSA/DNA Certification Database. If you believe this to be incorrect, please check the number and try again." Does that mean that the sticker is a fake? I've never seen this before.
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Needs'
1972 Football-9's high#'s
1965 Football-8's
1958 Topps FB-7-8