For Depositfiles Filemanager you should use Login and Password for your account. If you do not remember your current Login and Password, you can have them sent to your e-mail. For this use the button "Send my current password to e-mail" in the option "Change password" in the menu "My profile". When you press the button to the e-mail registered to your account will be send a letter with your Login and Password.

Enter received Login and Passord to Depositfiles Filemanager and the application will login to your account.