Postgresql : Not able to restore the backup file

Hi Team,

I am following this article here

sysadmin = pg_akshitsaxena

password = pg_syspassword

public user = pg_newpublicuser

passwrod = pg_password

Under the section "Restore PostgreSQL Database" at point 4 when I put the password for sysadmin then it doesn't show me any error but when I perform point no5. then it gives me this error

Can anyone help me with this please?