Unable to upload files using FTP.
There is no issue with the FTP server's. You haven't provided any received error messages and information about where you are connecting from.
https://picdm.sunbangyan.cn/2024/01/25/5d08c9053ce8d1cf7ec46ce61b14508b.jpeg
It looks like the same issue: https://forum.serv00.com/d/295-ssh-why-cant-connect
Ask your provider to unblock our IP or connect to alternative addresses