[pjmpjm]

Kovid, can you tell me what happened? 'Library Maintenance' has failed three times in a row.

calibre, version 6.3.0

ERROR: Failed: Database integrity check failed, click "Show details" for details.

Traceback (most recent call last):
File "calibre\gui2\dialogs\check_library.py", line 52, in vacuum
File "calibre\db\cache.py", line 77, in call_func_with_lock
File "calibre\db\cache.py", line 2474, in vacuum
File "calibre\db\backend.py", line 1293, in vacuum
File "calibre\db\fts\connect.py", line 83, in vacuum
File "calibre\db\backend.py", line 393, in execute
apsw.NoMemError: NoMemError: out of memory