Exit code 3: maybe file locked which shouldn't have been?

Staerting the computer after 2 days off, I got the following:

Exit code 3

Traceback (most recent call last):
  File "/usr/share/sbackup/sbackup-indicator", line 102, in <module>
    exitcode = main(options)
  File "/usr/share/sbackup/sbackup/ui/indicator.py", line 92, in main
    exitcode = indicator_core.main(options, SBackupdIndicator)
  File "/usr/share/sbackup/sbackup/ui/indicator_core.py", line 1041, in main
    exitcode = sbdgui.main(indicator_class)
  File "/usr/share/sbackup/sbackup/ui/indicator_core.py", line 1003, in main
    self.__lock.lock()
  File "/usr/share/sbackup/sbackup/util/lock.py", line 71, in lock
    self.__prepare_lock_dir()
  File "/usr/share/sbackup/sbackup/util/lock.py", line 63, in __prepare_lock_dir
    raise exceptions.ApplicationLockError
ApplicationLockError

Ubuntu 14.4