[2015-10-03 22:10:53.948377] TransferScanner: warning TransferScanner crashed: unknown response from git cat-file ("refs/heads/git-annex:706/2a9/SHA256E-s13840914--38cdcf384aee777000693f58f1302684bf18f577045c1340d7aeb72b6d6f2233.dmg.log.cnk missing","refs/heads/git-annex:b8f/4d2/SHA256E-s26301635--ce2f215486df83c6ada74a81679ff78f717404d0637bfd51ecbf0330c21db12b.dmg.log")

What exactly is this telling me?
