Unable to login to FTP server

I get the following error on attempting to connect to my ftp server :
500 OOPS: cannot change directory:/nonexistent

Here are my sequence of commands and respective outputs :

ftp 0.0.0.0 8081
Connected to 0.0.0.0.
220 (vsFTPd 3.0.3)
Name (0.0.0.0:crio-user): ftp
331 Please specify the password.
Password:
500 OOPS: cannot change directory:/nonexistent
Login failed.

Here is my vsftpd.conf file :

listen=YES
listen_port=8081
vsftpd_log_file=/home/crio-user/workspace/vsftpd.log
xferlog_enable=YES
xferlog_std_format=NO
syslog_enable=NO
log_ftp_protocol=YES
ftp_username=nobody
anonymous_enable=YES
connect_from_port_20=YES
dirmessage_enable=YES

Hey, please go through the guidelines and TODO’s it has been explained properly as to what has to be done.

I have tried the instructions given. Still not able to get past this issue.

We should not use the anonymous mode and a ftp specific username. These entries in the config file may be an issue.