(Jailbroken) iOS 7 stock apps missing on springboard

All apps from private/var/stash/Applications.xxxxxx are missing suddenly. I can't exactly say when that happened, don't think it was any specific Cydia tweak. I still can ssh into my iPhone and see that the folder is still there, but the applications inside it won't show up on springboard. I already created a new symlink into root ("/") and I made chmod 775 for the applications folder. I've run out of ideas and would like to avoid a full restore. What could be wrong and what can I do?