There's a bit of a server issue occurring, many members are currently facing this issue. Just hang tight and hopefully it will be resolved soon c:
Nudging you towards this thread here. (https://feral-heart.com/smf/index.php?topic=67895.0)
It seems your issue is now this current one that a lot of users (myself included) are experiencing, where even if your username and password are correct, it will give you that same message that either or are incorrect. We have forwarded this issue to our server master, and we ask that you be patient in this time while he resolves the issue. So sorry for the inconvenience.
Going ahead and locking this now.