Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/gwibber/microblog/dispatcher.py", line 308, in do_maintenance
    self.messages.maintenance()
  File "/usr/lib/python2.7/dist-packages/gwibber/microblog/storage.py", line 49, in maintenance
    accounts = self.db.execute("SELECT distinct(account) FROM messages").fetchall()
OperationalError: database is locked