Issue backup error

[bxAC]

Hello, I got a message of saturated physical memory on January 15, then just a few minutes later, a message saying that it was back to normal. Wanting to make a backup today, I see that everything is empty in the plesk interface. When I want to create a local backup, I get an error message saying something like this: "Error: You can only store backups in remote storage, but no remote storage is currently configured. Configure remote storage in the Remote Storage Settings."
And when I set up an FTP backup, with the correct username and password, I get a message telling me that these are not good.

Could someone please help me?
Centos 7 server

 

[Bitpalast]

And when I set up an FTP backup, with the correct username and password, I get a message telling me that these are not good.

Maybe the system is right?