iPrint driver store and manager will not load

Hi,

I stop my driver store and manager and now will not load anymore.
Error:
Feb 15 21:13:15 INFO iPrint Manager 'ndpsman' has started loading.
Feb 15 21:13:15 FATAL Failed to daemonize, error code: 13
Feb 15 21:13:15 WARNING The iPrint Manager was unable to update its status in eDir, Error: -1.

Hope that somebody can help me

Thanks
Amila