In multichain debug.log I sometimes see logs like:
2023-11-29 20:29:37 ERROR: AcceptBlockHeader : prev block not found
2023-11-29 20:29:37 ERROR: ProcessNewBlock : AcceptBlock FAILED
What does it exactly mean?
I have already seen such errors in my multichain logs but since two days they happens much more often (even several times per hour). Such errors are treated as misbehaving and cause that banscore is increasing quickly and ends up in banning all (or nearly all) other multichain nodes and leads to network instability.
What can be a reason for it?