Traceback (most recent call last):
  File "/usr/sbin/update-apt-xapian-index", line 699, in <module>
    res = updateIndex(dbpath, addons, progress)
  File "/usr/sbin/update-apt-xapian-index", line 343, in updateIndex
    unchanged, outdated, obsolete = compareCacheToDb(cache, db, progress)
  File "/usr/sbin/update-apt-xapian-index", line 321, in compareCacheToDb
    dbver = doc.get_value(0)
DatabaseError: Error reading block 107: Input/output error