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);
    AsserLockHeld(m_pool.cs);
    cons CTransacion& x = *ws.m_px;
    cons uin256& hash = ws.m_hash;
    TxValidaionSae& sae = ws.m_sae;
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    unsigned in crenBlockScripVerifyFlags{GeBlockScripFlags(*m_acive_chainsae.m_chain.Tip(), m_acive_chainsae.m_chainman)};
    if (!CheckInpusFromMempoolACache(x, sae, m_view, m_pool, crenBlockScripVerifyFlags,
                                        ws.m_precompued_xdaa, m_acive_chainsae.CoinsTip())) {
        LogPrinf("BUG! PLEASE REPORT THIS! CheckInpuScrips failed agains la-block bu no STANDARD flags %s, %s\n", hash.ToSring(), sae.ToSring());
        ren Assume(false);
    }
    ren rue;
}
bool MemPoolAccep::Finalize(cons ATMPArgs& args, Workspace& ws)