Hello, RR123,
You’ll be able to see Privat Content area only if you are author of the topic. This topic was created by another user, that’s why you don’t see content of that area.
I sent the file that you need to replace to fix this issue to your registration email.
We don’t use any plugins to change files via Dashboard. Because if any Fatal error will appear then we won’t be able to fix it. Only FTP.
Regards