Unable to create backup: Undefined index: def_datetime_format

Created:

2016-11-16 12:50:55 UTC

Modified:

2017-08-08 13:31:55 UTC

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Unable to create backup: Undefined index: def_datetime_format

Applicable to:

  • Plesk 12.5 for Windows

Symptoms

Unable to create backup for subscription, the following error occurred:

PHP Notice : Undefined index: def_datetime_format
file: C:\\Parallels\\Plesk\\admin\\plib\\backup\\BackupObject.php
line: 38
code: 8

Cause

This is Plesk internal software issue with id #PPPM-4866 , the fix will be included in one of the next product updates.

Resolution

Disable Web Presence Builder debug mode, delete the following lines in %plesk_dir%\\sb\\config :

[debug]
debug = on

Also make sure that display_errors is turned off in %plesk_dir%\\admin\\conf\\php.ini :

display_errors=Off
error_reporting=E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED

Please note that we do not recommend to use Web Presence Builder debug mode enabled all the time on the production servers since this functionality was implemented only for troubleshooting purposes.

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