This article covers how to resolve Plesk error, 'Internal error: [Account :: getPassword] cannot decrypt password to be plain'. It happens when A database user whose password is encrypted can now import and export the domain database after providing the database password.
However this issue is resolved in Plesk Obsidian.
To fix this Plesk error:
1. Updating Plesk via the Plesk interface
Make sure that port 8447 is opened in a firewall. If it is closed and cannot be opened for some reason, use the command-line instructions.
i. In Plesk, go to Tools & Settings and click Updates and Upgrades.
ii. On the Updates and Upgrades page, click Update Components.
iii. Click Continue to begin the update procedure.
2. Updating Plesk via a command-line interface
i. Connect to a Plesk server via SSH (Linux) / RDP (Windows Server).
ii. Run Plesk Installer Update (on Windows Server, start a command prompt as an Administrator):
plesk installer update
By default, Plesk installs updates automatically by means of the Plesk daily task (executed every night), if the option Automatically install Plesk updates is enabled at Tools & Settings > Update Settings.
During the update process:
1. Plesk may go offline for several minutes, if updates require a Plesk restart
2. Websites will stay online
Note: If a service component is going to be updated, its service will be restarted.
To find out what Plesk update is currently installed on the system, go to the Home page > System Overview.
Alternatively, execute the following command in a command-line interface: