Cannot update

Hi,

I’d recommend backing up your settings and removing Wordfence and table data completely. Then do a clean install and import your settings.

Export Settings:
http://docs.wordfence.com/en/Wordfence_options#Exporting_and_Importing_Wordfence_Settings

Remove Wordfence:
https://support.wordfence.com/support/solutions/articles/1000010321-how-can-i-remove-all-wordfence-data-or-reset-wordfence-to-the-default-settings-

Hope that helps,
Brian