Has caused my site to go down – white screen

Hello,

I apologize for such situation. We have made some fixes in development version.

One of the fix helps to avoid the error (which could possibly provoke white screen) if your PHP compiled without XML support.

Please, install this version: https://downloads.wordpress.org/plugin/cleantalk-spam-protect.zip

Please, send us PHP logs. It will help to resolve the situation fast.

Let us know the results. Ask us if you need any help.