Unable to create a backup or restore Web Presence Builder snapshot in Plesk for Windows: Invalid Snapshot

Symptoms

• Unable to create a backup or restore Web Presence Builder snapshot in Plesk for Windows, the process fails with the error:

  PLESK_ERROR: Invalid Snapshot

  ---

  PLESK_ERROR: Unable to restore website

• The following error can be found in the %plesk_dir%admin\logs\plesklog_sitebuilder.log file:

  CONFIG_TEXT: [EMERG] /sitebuilder/JsonApi/ PleskUtilException: filemng failed:
  Unexpected error at execute "C:\Program Files (x86)\Parallels\Plesk\admin\bin\filemng.exe" u0088675 base64 C:\inetpub\vhosts\example.com\httpdocs\data/snapshots/6e6c622a415484ff7a23038329113589.php(RunTime::RunAsUser::run line 221)(Error code 1)file: C:\Program Files (x86)\Parallels\Plesk\admin\plib\Service\Agent.phpline: 243code: 0

  ---

  CONFIG_TEXT: ERR [1] Exception: PHP Warning: filesize(): stat failed for C:/Program Files (x86)/Parallels/Plesk/PrivateTemp/sb94E3.tmp.zip; File: C:\Program Files (x86)\Parallels\Plesk\admin\plib\Service\Driver\Filesystem\Plesk\Windows.php, Line: 271file: C:\Program Files (x86)\Parallels\Plesk\admin\plib\Smb\Exception\Syntax.phpline: 57code: 0

  ---

  CONFIG_TEXT: [EMERG] /sitebuilder/JsonApi/ SB_Site_Snapshot_Exception: invalidSnapshot
  file: C:\Program Files (x86)\Plesk\sb\include\SB\Site\Snapshot.php
  line: 258
  code: 0 203.0.13.2 https://example.com:8443/sitebuilder/Editor

Cause

The issue is caused by product bugs #PPPM-3483 and #PPPM-4869.

Resolution

Apply one of the solution below depending of the using Plesk version:

Warning: before applying the solution below, verify that website on which snapshot is tried to be restored is available via HTTP.