I initiated today’s Wordfence Security update today and it crashed my site.
While figuring out to solve the issue, I finally came up with a solution, i.e, to get into the directories, locate Wordfence Security plug-in, and rename it.
I refreshed my site right after renaming it, and this solution fixed the issue and my site came back online after hours of struggle which included customer care (which didn’t really help). changing Server Names etc…
Hope this helps you too.