The pfctl binary (userland) is from a newer version, but the running kernel (or the configuration file) is still operating under the old ruleset structure.
pfctl -V
# Running PF kernel version sysctl net.inet.pf.version pf configuration incompatible with pf program version
The error is a classic "Lost in Translation" story from the world of Unix system administration. The Core Conflict The pfctl binary (userland) is from a newer
If still persists, ensure kernel/userland match: pf configuration incompatible with pf program version
Look for keywords like scrub or altq that may have changed or been removed in your specific OS version.