aaPanel_Jose I test with vps Vultr, it is ok, I can use ftp storage successfully. Thank you so much
But I am using amazon vps (lightsail), I open the ports 20-22, 39000-40000 as you told me, I also setup as the same with Vultr, after that I saw the folder Backup on vps amazon but the file can't be transferred, do you have any suggestion for me! Thank you so much!