[Sun Sep 23 15:24:34 2007] [error] [client 127.0.0.1] Could not LOCK /blog/README due to a failed precondition (e.g. other locks).  [500, #0]
[Sun Sep 23 15:24:34 2007] [error] [client 127.0.0.1] The locks could not be queried for verification against a possible "If:" header.  [500, #0]
[Sun Sep 23 15:24:34 2007] [error] [client 127.0.0.1] Could not open the lock database.  [500, #400]
[Sun Sep 23 15:24:34 2007] [error] [client 127.0.0.1] (2)No such file or directory: Could not open property database.  [500, #1]