No, that is not a "file not found" (db); it is an error found in a query SQL: it refers to a table named "category" that non exists in the db.
(and that query tries to select a field named Category too?)
Surely that table does not exist in the db used at that time.
Maybe an old version of the db?
I happened to see something that looked like 2 + 2 = 5 in debug mode.
Thanks to the Windows Explorer, I had on hand a wrong version of a db; in the device certainly had the right one, but "importing" it using Explorer, it was an older version (will have been a matter of buffer).