I am receiving many emails along the lines of... "Why can't I log in, I have been a member here for years? Can you help?"
Frankly, I am a little tire of answering them all thus this blanket announcement.
This is a NEW forum as of December 2018 when the server crashed and burned and we had to bury it. There are posts about it her you can read more about it is you desire. But what you need to know... We all had to start over and create new accounts because of the crash. Some things have changed in the security features, see the pinned threads for details.
Bottom line, if you have not created an account since December that is why you can't login. Create a new one and enjoy.