Account not found in launcher

[Darkness740]

"An issue occurred when logging in. Account not found."
is what I get when I try to login to the launcher.

Is my account not the same as my login on here? I logged in on here fine, but it doesn't work in the launcher.

[Bubbles]

Darkness740 Make sure you're using the correct case for each character. It's case sensitive

[Darkness740]

Bubbles Thank you