From TeamWeaverWiki
A database query syntax error has occurred.
This may indicate a bug in the software.
The last attempted database query was:
(SQL query hidden)
from within function "
SMW::getUnusedPropertySubjects".
MySQL returned error "
1064: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'TYPE=MEMORY' at line 1 (localhost)".