It seems that there is something wrong with the inode counter, it says you have 0 inodes which you can see in the file manager is clearly not true.
I tried to add a script that can count the number of inodes in your website, but I couldn’t because it doesn’t appear to be possible to upload files over FTP anymore. When I tried it with FileZilla, I saw the following error:
553 Can’t open that file: Disk quota exceeded
The “Disk quota exceeded” error means you either have more than 5 GB of files, or more than 30,000 inodes.
So you’ll need to remove some stuff from your account to fix your account.