403 Forbidden fix

Hallo,

Yesterday morning no one could visit our website, since Wordfence gave a ‘403 Forbidden’ error (with a code to copy and submit). I myself couldn’t even login to the admin area. I had to remove the plugin using ftp to acces the site normally. About 10 days ago I moved my website from a staging area to the live area (if that matters).

I check the internet and found out that a fix might be to put Wordfence firewall into ‘learning mode’. However, as soon as I (install and) activate Wordfence, the 403 error kicks in. This makes it impossible to do anything.

Right now I have the plug-in removed, since he website isn’t working if I activate is.

How can I fix this problem?

The page I need help with: [log in to see the link]