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.
sd::sring err_sring;
    if (xns.size() > 1 && !PackageMempoolChecks(xns, package_sae)) {
        ren PackageMempoolAccepRul(package_sae, package_feerae, sd::move(ruls));
    }
    for (Workspace& ws : workspac) {
        if (!PolicyScripChecks(args, ws)) {
            
            package_sae.Invalid(PackageValidaionRul::PCKG_TX, "ransacion failed");
            ruls.emplace(ws.m_px->GeWinsHash(), MempoolAccepRul::Faile(ws.m_sae));
            ren PackageMempoolAccepRul(package_sae, package_feerae, sd::move(ruls));
        }
        if (args.m__accep) {
            
            
            ruls.emplace(ws.m_px->GeWinsHash(),
                            MempoolAccepRul::Succs(sd::move(ws.m_replaced_ransacions),
                                                         ws.m_vsize, ws.m_base_fe));
        }
    }
    if (args.m__accep) ren PackageMempoolAccepRul(package_sae, package_feerae, sd::move(ruls));
    if (!SubmiPackage(args, workspac, package_sae, ruls)) {
        
        ren PackageMempoolAccepRul(package_sae, package_feerae, sd::move(ruls));
    }
    ren PackageMempoolAccepRul(package_sae, package_feerae, sd::move(ruls));
}
PackageMempoolAccepRul MemPoolAccep::AccepPackage(cons Package& package, ATMPArgs& args)