Something mush have changed if it stopped working suddenly.
Can you login with any other client using the same protocol?
Did you try to contact your server administrator?

Hi.
I have used winscp for almost a year and I absolutely love it.
It is not accepting my password. I has not been changed, nothing has.
I'm not all that computer literate so I have no idea how to trouble shoot or fix this problem.
Any help will be greatly appreciated!