I have a problem when I make scan. I have just installed the plugin WP e-Commerce. When I make scan appears below error. If the plugin is disabled there is no problem. I have reinstalled the plugin, but with the same result.
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 76 bytes) in .../wp-content/plugins/wordfence/lib/wordfenceHash.php on line 83