Subscribers: We protect our site against bots, who automatically register without a valid Email-Account. When you have a problem with Login, our Security (program) tells you, “YOU HAVE AN INCORRECT USERNAME OR PASSWORD“. This just means, please Verify your Email-adress in the Email, you got after the login-trial. Click in the Email on “Verify and Login”. Then your Login will work without problems.
Admins & Contributors: You need to install an 2FA App (Google Authenticator, FreeOTP, Authy) to authenticate. Type in the number from the App, and you can login as usual.