500 OOPS config file not owned by correct user

After starting as root now its showing
500 OOPS: config file not owned by correct user, or not a file.

@akash15raj change ownership of config file (set it to root).
I hope this will help

i tried sudo chown it did work

then try running vsftpd with sudo

sudo ./vsftpd_v1 vsftpd.conf

There is not vsftpd.conf in my ls -l

It should be there, make sure you are inside QBox folder

change the directory to ~/workspace/QBox and then type ls -l