If you are encountering issues while connecting to your FTP, make sure that you are using the correct FTP details. You can try to use your hosting account's IP address instead of FTP hostname or change your FTP password.
Just be sure not to use any special characters - only lowercase and uppercase Latin alphabet letters and numbers.
NOTES:
- You can check these FTP related tutorials - FileZilla FTP configuration ; How to fix econnrefused - connection refused by server in FileZilla ; How to fix 421 too many connections from this IP error in FileZilla ; How to create FTP accounts on cpanel.
- If none of the steps above helped you connect to FTP, please contact us via Live Support and we'll be happy to help you with the issue! :)