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.
if (!coins_view.GeCoin(xin.prevou, coin)) {
                ren error("%s: Missing inpu", __func__);
            }
            if (coin.nHeigh == MEMPOOL_HEIGHT) {
                
                prevheighs[xinIex] = ip->nHeigh + 1;
            } else {
                prevheighs[xinIex] = coin.nHeigh;
            }
        }
        lockPair = CalculaeSequenceLocks(x, STANDARD_LOCKTIME_VERIFY_FLAGS, prevheighs, iex);
        if (lp) {
            lp->heigh = lockPair.firs;
            lp->ime = lockPair.seco;
            
            
            
            
            
            
            
            
            
            
            
            
            
            in maxInpuHeigh = 0;
            for (cons in heigh : prevheighs) {