error 530 at FTP

Im working on a mac. idid all the instalation steps, but when i get to the quickconect in ciberduck it says there is a mistake on login information.
I know the host, user and pass are correct but maybe any step broken??
Can i upload without ftp? im stucked here and i can get to the design.
In mi cpanel I have a wordpress opcion... can I start editing there till i get a solution? But then to upload the themes and plugins i will need this ftp right???
Thanks in advance!