Unable to restore a backup when logged in under a customer account: Nothing happens after clicking OK

Symptoms

• It is not possible to restore a full subscription backup when logged in under a customer account. After selecting a backup and clicking the Restore button, a window with IP address mapping settings appears:

  • when clicking Save Current IP Mapping to File, the following error message appears:

    PLESK_WARN: Permission denied

  • when clicking  OK, nothing happens.

    
    
    
    

• Several IP addresses are defined at Tools & Settings > IP Addresses.

• When logged in under Plesk administrator, the same backup restores successfully.

Cause

This is a Plesk bug with ID PPPM-8094, which will be fixed in future product updates.

Resolution

As workaround, perform the following:

1. Connect to a Plesk server via SSH.

2. Create a backup of the original file /usr/local/psa/admin/plib/backup/Conflicts/Detector.php:

   # mv /usr/local/psa/admin/plib/backup/Conflicts/Detector.php /usr/local/psa/admin/plib/backup/Conflicts/Detector.php_back

3. Download the patched file, unpack it and put instead of the original file using these commands:

   # wget  https://support.plesk.com/hc/article_attachments/360009985953/Detector-PP-17.5-2018.08.03.zip
   # unzip ./Detector-PP-17.5-2018.08.03.zip
   # mv ./Detector.php /usr/local/psa/admin/plib/backup/Conflicts/Detector.php

4. Set the correct ownership and permissions for the patched file:

   # chown root:root /usr/local/psa/admin/plib/backup/Conflicts/Detector.php
   # chmod 644 /usr/local/psa/admin/plib/backup/Conflicts/Detector.php