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Backup in Plesk finished with warning: Extension “Laravel Toolkit”: Failed to exec backup_restore_helper

Backup logs at Tools & Settings > Backup Manager show the below warning message:

Warning: Extension "Laravel Toolkit"
Unable to back up extension. Error: Failed to exec backup_restore_helper: Exit code: 1

Product issue:

#EXTPLESK-3725 "No longer causes backup to show warnings for domains without Laravel ."
Fixed in:
- Laravel Toolkit 1.2.2 05 July 2022

Please consider updating your server:

If an update is not possible for some reason you may try the following

For the domains that don't have the Laravel installed the warnings can be safely ignored, it won't affect the backup.

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