elffuts on "[Plugin: Wordfence Security] How long should the initial scan take?"

OK, I made both of the changes you suggested. Now I get an error message: [Apr 11 10:59:36:1397235576.467871:1:error]
<b>Fatal error</b>: Out of memory (allocated 30146560) (tried to allocate 2635209 bytes) in <b>/homepages/6/d172544949/htdocs/IAS/wp-includes/wp-db.php</b> on line <b>880</b>