I found the answer to my problem in other forum threads. Had to uncheck the “Hide WordPress Version” in Wordfence Security dashboard (under options) and now it works. Thanks for your help.
Same issue and Divi told me to contact Wordfence.
Here’s their answer:
Hello,
Thank you for contacting our Technical Support Team.
I would suggest contacting the plugin author for support, as he/she would be better equipped to answer such questions. I am afraid we cannot guarantee support with third party plugins.