An error is shown on different pages in Plesk: pm_Exception: attribute name is invalid: wapp

Symptoms

When navigating between the pages in Plesk, the following error message pops up:

pm_Exception: attribute name is invalid: wapp

Cause

This is a Plesk bug with ID EXTPLESK-5190 which has already been fixed.

Resolution

The message is a cosmetic issue which does not affect Plesk functionality.

To install the fix manually:

1. Connect to the Plesk server via SSH (Linux) / RDP (Windows Server)

2. Run Plesk Daily task (on Windows server, start a command prompt as an Administrator):

   # plesk daily