[tor-relays] problem with new and old exit relays

Recently I have been receiving warnings on notices.log shown below. Today I started a new exit relay and immediately received a similar message. Is this familiar to anyone? What's my problem? Dec 31 03:26:35.000 [warn] Malformed IP "???" in address pattern; rejecting. Dec 31 03:26:35.000 [warn] Couldn't parse line "[???]:*". Dropping Dec 31 03:26:35.000 [warn] Malformed policy 'reject [???]:*'. Discarding entire policy list. Dec 31 03:26:35.000 [warn] append_exit_policy_string(): Bug: Unable to parse internally generated policy reject [???]:* (on Tor 0.2.7.6 ) L Brandt