Have you ever gotten this error message on your website from Wordfence? There's a link to click but it doesn't take you where needed.
Once you have a look around the menu it is straightforward, but this should be where you go once "Manually Update" is clicked.
The path is
WordFence/All Options/Firewall/Advanced Firewall Options/
Advanced Firewall Options section reveals more options and continue lower down the page until a
Manually Update Rules button is seen.
Manually Update Rules link and the job is almost done.
And finally close the dialogue box and wait for it to happen again, which it seems to at least once every two months or so.