https://support.survarium.com/index.php?/en/Knowledgebase/Article/View/123/0/cannot-login
I. Login Server: Invalid user name or password - Incorrect user name or password.
Change password via "Forgot your password" function, then open mailbox and proceed link to change password.
Use only English characters in your password.
Do not enter numbers using NumPad block (it’s not supported yet).
Turn off "Save password", clear fields, restrat game and try enter.