[crashdelta]

When I try to add books to my library I keep getting error messages like this:

calibre, version 5.6.0
FEL: Fel vid tilläggning: Det gick inte att lägga till böcker, klicka "Visa detaljer" för mer information


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Det gick inte att lägga till boken: Superpower Your Kids
Z:\Downloads\Superpower Your Kids.epub
Med fel:
Traceback (most recent call last):
File "calibre\gui2\add.py", line 423, in add_book
File "calibre\db\legacy.py", line 334, in create_book_entry
File "calibre\db\cache.py", line 72, in call_func_with_lock
File "calibre\db\cache.py", line 1654, in create_book_entry
File "calibre\db\cache.py", line 1367, in set_metadata
File "calibre\db\cache.py", line 1191, in update_path
File "calibre\db\backend.py", line 1645, in update_path
File "calibre\db\tables.py", line 134, in set_path
File "calibre\db\backend.py", line 920, in execute
apsw.CantOpenError: CantOpenError: unable to open database file

I know some of it is in Swedish but that stuff is kinda irrelevant anyways, basicly just says it was unable to add the book and to click show more for details.