Unable to create subdomain in existing subscription, getting below error message:
Error: Some fields are empty or contain an improper value. Do not use quotes, space and national alphabet characters in a password. The password length should be from 5 to 14 characters in length, and it should not contain the username. ('password' = '')
Weak password of main FTP user, password policy on the server does not allow to use this password for subdomain.
System user of the domain has invalid password.
Reset FTP user password by following the path bellow:
Domains > domain.tld > Websites & Domains > Web Hosting Access > Password
Make sure the strong password for the users is set.