Feral Heart

Hi there! Here are a few things you may try in addition, if you have been using the Play Game Tab:
-Disable any proxies on your web browser
-Use a different web browser
-Login on a mobile device or tablet
-Check that your internet connection is strong
-Right click on the FH application and click "Run as Administrator"

If by chance you are still not able to login, it is possible that your account no longer exists. You said it has been a good few years since you logged in, and if you have not entered the game in over 18 months, it is possible that the system has cleared your account. In that case, you would have to create a new account.
Hope this helps!

None of these have worked for me, and i have a pretty new account and have been trying to get FH to work for ages now, but it always says the same thing