# Restore from v2 backup folder from v3 upgrade

**URL:** <https://forum.mautic.org/t/restore-from-v2-backup-folder-from-v3-upgrade/19161>\
**Category:** Mautic 3 - Install/Upgrade Support\
**Created:** [April 24, 2021, 5:25pm UTC](https://forum.mautic.org/t/restore-from-v2-backup-folder-from-v3-upgrade/19161 "2021-04-24T17:25:31Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Rich](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/rich/32/45_2.png) [@Rich](https://forum.mautic.org/u/Rich)\
**Post date:** [April 24, 2021, 5:25pm UTC](https://forum.mautic.org/t/restore-from-v2-backup-folder-from-v3-upgrade/19161/1 "2021-04-24T17:25:31Z")

</div>

**Your software** Mautic 3.3  
_My PHP version is_ : 7.4  
_My MySQL/MariaDB version is_ (delete as applicable): MariaDB version

**Updating/Installing Errors**

## The site is currently offline due to encountering an error. If the problem persists, please contact the system administrator.

\*I am Updating  
\*Upgrading/installing via Command Line

_These errors are showing in the installer_ :  
None

_These errors are showing in the Mautic log_ :  
None

_These errors are showing in the upgrade\_log.txt file (located in the root of your Mautic instance when an upgrade has been attempted - ensure you remove or redact any sensitive data such as domain names in the file path)_ :

Nothing

**Your problem**  
_My problem is_ : The site is currently offline due to encountering an error. If the problem persists, please contact the system administrator. After upgrade failed.

how can I restore using the mautic-2-backup-files folder to recover from this crash?

_Steps I have tried to fix the problem_ :