Aapanel not working.

After inserting username and password, the aapanel not working and showing this page.
Please Help!

I cannot access the server via command line as well.

Hello, please check if the ssh port used by the server is correct? Is it okay to try to do it using the server provider's VNC?

or try adding /ftp to the address bar
as:
https://192.168.16.157:33609/ftp