Unable to install the WordPress instance: filemng failed: filemng: Error occurred during /bin/rm command

Symptoms

• Unable to install WordPress for the example.com domain in Plesk with the following error message:

  PLESK_ERROR: Error: The following error has occurred during the installation of application: Installation of WordPress at http://example.com/ failed. filemng failed: filemng: Error occurred during /bin/rm command.

• In an attempt to update the WordPress instance the same error is shown.

Cause

Incorrect permissions are set for the folders/files of the example.com domain.

Resolution

1. Log into the server via SSH.

2. Execute the command below to repair permissions for the example.com domain:

   # plesk repair fs example.com

   Note: in the command above replace example.com with the name of the affected domain.