My FTP user isnt allowed anymore

Since I developed on your SQL-Database my FTP account doesnt work anymore and I dont know why?

Please tell me how I can enable my remote FTP user or better, why the ftp acount is not permitted anymore.

Thank you, I would be very glad if you can get this stuff working.

Can you explain in further detail?

FTP works like

hostname: files.000webhost.com
user: yourusername from yourusername.000webhostapp.com
password: same site password - reset under general settings at 000webhost.com

REMOTE MYSQL IS DISABLED FOR FREE USERS.