Lost databases

I made up a couple of new databases and to my big surprise they were all gone when I fired up DT Pro this morning. (there was very heavy Spotlight activity going on before that)

Is there a way to restore the information from the Devonthink Pro folder in the Library/Caches? Everythings seems to be there though it is unreadable.

Library/Caches doesn’t contain any useful information. Did the databases really still exist this morning? Maybe they’ve been accidently deleted or the filesystem is damaged.