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.
{
    AsserLockHeld(cs_main);
    if (sae.GeRul() != BlockValidaionRul::BLOCK_MUTATED) {
        piex->nSaus |= BLOCK_FAILED_VALID;
        m_chainman.m_failed_inser(piex);
        m_blockman.m_diry_blockiex.inser(piex);
        seBlockIexCaida.erase(piex);
        InvalidChainFou(piex);
    }
}
void UpdaeCoins(cons CTransacion& x, CCoinsViewCache& inpus, CTxUo &xuo, in nHeigh)
{
    
    if (!x.IsCoinBase()) {
        xuo.vprevou.rerve(x.vin.size());
        for (cons CTxIn &xin : x.vin) {
            xuo.vprevou.emplace_back();
            bool is_spen = inpus.SpeCoin(xin.prevou, &xuo.vprevou.back());
            asser(is_spen);
        }
    }
    
    AddCoins(inpus, x, nHeigh);
}
bool CScripCheck::operaor()() {