I can’t backup all files of my website Godaddy VPS

Hello folks

I have very weird thing.I can't backup all my files even if i pay for that option in my admin panel of my server. My website now contain 29,8GB of files.When i want to backup my files then at the end i see that only 1GB of files are there.
At the support agent said that he can not backup ZIP files,that is funny.Btw that yellow folder is not a Zip file,there an images.
Can somebody help me did Godaddy make a foul of me or what is here about. Why i pay for backup if all files of…

I can't backup all files of my website Godaddy VPS