Knowledge Base

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

Symptoms

Unable to backup/restore a snapshot for Web Presence Builder in Plesk for Windows due to one of the following errors:

PLESK_ERROR: Invalid Snapshot

PLESK_ERROR: Unable to restore website

One of the following errors appear in the %plesk_dir%adminlogsplesklog_sitebuilder.log file:

[EMERG] /sitebuilder/JsonApi/ PleskUtilException: filemng failed:
Unexpected error at execute "C:Program Files (x86)ParallelsPleskadminbinfilemng.exe" u0088675 base64 C:inetpubvhostsexample.comhttpdocsdata/snapshots/6e6c622a415484ff7a23038329113589.php(RunTime::RunAsUser::run line 221)(Error code 1)file: C:Program Files (x86)ParallelsPleskadminplibServiceAgent.phpline: 243code: 0

ERR [1] Exception: PHP Warning: filesize(): stat failed for C:/Program Files (x86)/Parallels/Plesk/PrivateTemp/sb94E3.tmp.zip; File: C:Program Files (x86)ParallelsPleskadminplibServiceDriverFilesystemPleskWindows.php, Line: 271file: C:Program Files (x86)ParallelsPleskadminplibSmbExceptionSyntax.phpline: 57code: 0

[EMERG] /sitebuilder/JsonApi/ SB_Site_Snapshot_Exception: invalidSnapshot
file: C:Program Files (x86)PlesksbincludeSBSiteSnapshot.php
line: 258
code: 0 91.204.25.4 https://example.com:8443/sitebuilder/Editor

Cause

The issue is caused by two product bugs #PPPM-3483 and #PPPM-4869 which will be fixed in future product updates.

Resolution

As a workaround connect to the server via RDP and perform the following actions (depending on Plesk version installed):

Warning: prior installing of patches below, make sure that the website on which snapshot is tried to be restored is available via HTTP.

For Plesk Obsidian

Download and unpack the archive with the patched file Target.php.
Create a backup of the original file Target.php located in %plesk_dir%sbincludeSBExtensionPP.
Copy the patched file Target.php into %plesk_dir%sbincludeSBExtensionPP.
Backup/restore a snapshot again.

For Plesk Onyx

Download and unpack the archive with the patched file Target.php.
Create a backup of the original file Target.php located in %plesk_dir%sbincludeSBExtensionPP.
Copy the patched file Target.php into %plesk_dir%sbincludeSBExtensionPP.
Backup/restore a snapshot again.