the command "bitcoin-cli getblockstats 0000000000000000000c61ff8f761ce509fc8901d3c22d61fec89637042ea2ba" does not work.

It displays "error: Error parsing JSON:0000000000000000000c61ff8f761ce509fc8901d3c22d61fec89637042ea2ba"

but it should display the block stats like the documentation says.

also bitcoin-cli getblockstats 0 does not work. block number must be at least 1 to work. But blocks start at 0.

tested with 0.20.1 on freebsd, another user on IRC acknowledged the problem.
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                LogPrin(BCLog::REINDEX, "%s: unexpeced daa a file offse 0x%x - %s. coninuing\n", __func__, (nRewi - 1), e.wha());
            }
        }
    } cach (cons sd::runime_error& e) {