- Plesk 11.x for Linux
The following error is shown when trying to save hosting preferences for the example.com domain through Plesk:
Home > Subscriptions > example.com > Websites & Domains > Web Hosting Access -> click OK
PLESK_ERROR: Error: Plain password could not be obtained.
The error is caused by an invalid password type of the domain system user.
Change the password of the domain FTP user through Plesk ( Home > Subscriptions > example.com > Websites & Domains > Web Hosting Access: Password ) or connect to the server via SSH and change it with CLI:
# /usr/local/psa/bin/domain --update example.com -passwd NEW_PASSWORD
Plesk will save the password with a valid type.