I have big problems about Application manager opration failed and all catalogs lost in N900 ,when i try to open application manager it says that "opration failed",then when i click in Update and download it says that "no catalogs in use"(no updates available) after that i click in applicataion manager-application catalogs,there is not any catalogs.i tried to re-put all catalogs and save but no catalogs there,i have put many songs, video and pics,all are hidden,even office also not working,when message comes it says that "Unable to recieve or send message ,Device storage full,remove data to free memory"My log is:-

hildon-application-manager 2.2.52.2
apt-worker exited.
apt-worker: can't truncate lock/var/lib/hildon-application-manager/apt-worker-lock:No space left on device
read:Bad file descriptor
apt-worker is not running

plz plz help me any one ,i have no idea about that plz write down detail for me,thanks KHYAM OLI