engteam
If your server has a security group (aws, google) , you need to enable port 21 and 39000-40000 in the security group

engteam
This is the security page of the panel. Please check if your server console has a security group. If so, you need to allow the port in it

    6 days later

    aaPanel_Jose aaPanel Can't find anything ultio in this document, would you like to access my panel to solve the problem?

      engteam
      Please do not disclose your ftp address and username. I have deleted the picture for you, if possible, please send the panel login information to jose@aapanel.com and I will arrange a time to check it for you

      8 days later

      engteam
      Sorry because we cannot reply to your questions in time during vacation these days

      I just tried to log in to your ftp and found that the files can be listed normally. It seems that your problem has been solved