Exception:

Traceback (most recent call last):
  File "/var/www/talebook/webserver/handlers/base.py", line 49, in do
    rsp = func(self, *args, **kwargs)
  File "/var/www/talebook/webserver/handlers/meta.py", line 52, in get
    items = self.get_category_with_count(meta)
  File "/var/www/talebook/webserver/handlers/base.py", line 480, in get_category_with_count
    rows = self.cache.backend.conn.get(sql)
  File "/usr/lib/calibre/calibre/db/backend.py", line 364, in get
    return ans.fetchall()
apsw.CorruptError: CorruptError: database disk image is malformed