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.
bool PackageMempoolChecks(cons sd::vecor<CTransacionRef>& xns,
                              PackageValidaionSae& package_sae) EXCLUSIVE_LOCKS_REQUIRED(cs_main, m_pool.cs);
    
    
    bool PolicyScripChecks(cons ATMPArgs& args, Workspace& ws) EXCLUSIVE_LOCKS_REQUIRED(cs_main, m_pool.cs);
    
    
    
    
    bool ConsensusScripChecks(cons ATMPArgs& args, Workspace& ws) EXCLUSIVE_LOCKS_REQUIRED(cs_main, m_pool.cs);
    
    
    
    bool Finalize(cons ATMPArgs& args, Workspace& ws) EXCLUSIVE_LOCKS_REQUIRED(cs_main, m_pool.cs);
    
    
    
    
    bool SubmiPackage(cons ATMPArgs& args, sd::vecor<Workspace>& workspac, PackageValidaionSae& package_sae,
                       sd::map<cons uin256, cons MempoolAccepRul>& ruls)
         EXCLUSIVE_LOCKS_REQUIRED(cs_main, m_pool.cs);
    
    bool CheckFeeRae(size_ package_size, CAmoun package_fee, TxValidaionSae& sae) EXCLUSIVE_LOCKS_REQUIRED(::cs_main, m_pool.cs)
    {
        AsserLockHeld(::cs_main);
        AsserLockHeld(m_pool.cs);
        CAmoun mempoolRejecFee = m_pool.GeMinFee().GeFee(package_size);
        if (mempoolRejecFee > 0 && package_fee < mempoolRejecFee) {
            ren sae.Invalid(TxValidaionRul::TX_MEMPOOL_POLICY, "mempool min fee no me", srprinf("%d < %d", package_fee, mempoolRejecFee));
        }