Comment 7 for bug 1070664

This is from /home/michele/.config/tomboy/tomboy.log

1/4/2013 5:34:40 PM [INFO]: Initializing Mono.Addins
1/4/2013 5:34:41 PM [ERROR]: Unparsable last-sync-date element in /home/michele/.config/tomboy/manifest.xml
1/4/2013 5:34:41 PM [INFO]: Monitor number returned by GetMonitorAtPoint (actual) is: 0
1/4/2013 5:34:41 PM [INFO]: Saved monitor number is: 0
1/4/2013 5:34:41 PM [INFO]: Saved Search window position is 169 x 101
1/4/2013 5:34:41 PM [INFO]: Saved monitor number does match the actual one - restoring as-is
1/4/2013 5:34:41 PM [INFO]: Restoring Search window to position 169 x 101 at monitor 0
1/4/2013 5:35:32 PM [ERROR]: Error cleaning up addin after sync: Object reference not set to an instance of an object
  at Tomboy.Sync.SyncManager.SynchronizationThread () [0x00000] in <filename unknown>:0
1/4/2013 5:36:32 PM [ERROR]: Unparsable last-sync-date element in /home/michele/.config/tomboy/manifest.xml

How can I help more? The bug still affects me every time I try to synchronize locally my notes. Tomboy 1.12.0 on Ubuntu 12.10 amd64 (fresh install - full updated - no customizations)