# Lost landing page after upgrade 2.0
**URL:** https://forum.mautic.org/t/lost-landing-page-after-upgrade-2-0/3892
**Category:** Product Support
**Created:** [July 9, 2016, 9:28am UTC](https://forum.mautic.org/t/lost-landing-page-after-upgrade-2-0/3892 "2016-07-09T09:28:20Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@alfredosimoes](https://forum.mautic.org/u/alfredosimoes)
#### Post date: [July 9, 2016, 9:28am UTC](https://forum.mautic.org/t/lost-landing-page-after-upgrade-2-0/3892/1 "2016-07-09T09:28:20Z")
Lost existing land page content after upgrade 2.0. Page URL gives a 500 Internal Server Error and when edit the landing page, content has been lost.
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### Author:  [@escopecz](https://forum.mautic.org/u/escopecz)
#### Post date: [July 11, 2016, 11:13am UTC](https://forum.mautic.org/t/lost-landing-page-after-upgrade-2-0/3892/2 "2016-07-11T11:13:12Z")
Answered in [https://github.com/mautic/mautic/issues/1983](https://github.com/mautic/mautic/issues/1983)
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### Author:  [@alfredosimoes](https://forum.mautic.org/u/alfredosimoes)
#### Post date: [July 10, 2016, 11:12pm UTC](https://forum.mautic.org/t/lost-landing-page-after-upgrade-2-0/3892/3 "2016-07-10T23:12:16Z")
When trying to edit the landing page gives the following error:
[2016-07-11 00:09:35] mautic.WARNING: PHP Warning: include(/home/ascmico/public\_html/mautic/vendor/twig/twig/lib/Twig/Node/Expression/Test/Defined.php): failed to open stream: No such file or directory - in file /home/ascmico/public\_html/mautic/vendor/composer/ClassLoader.php - at line 412 [] []
[2016-07-11 00:09:36] mautic.CRITICAL: Uncaught PHP Exception SymfonyComponentDebugExceptionClassNotFoundException: “Attempted to load class “Twig\_Node\_Expression\_Test\_Defined” from the global namespace. Did you forget a “use” statement?” at /home/ascmico/public\_html/mautic/app/cache/prod/classes.php line 6705 {“exception”:"[object] (Symfony\Component\Debug\Exception\ClassNotFoundException(code: 0): Attempted to load class “Twig\_Node\_Expression\_Test\_Defined” from the global namespace.nDid you forget a “use” statement? at /home/ascmico/public\_html/mautic/app/cache/prod/classes.php:6705)"} []
[2016-07-11 00:09:36] mautic.ERROR: Error: Class ‘Twig\_Node\_Expression\_Test\_Defined’ not found - in file /home/ascmico/public\_html/mautic/app/cache/prod/classes.php - at line 6705 [] []
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### Author:  [@alfredosimoes](https://forum.mautic.org/u/alfredosimoes)
#### Post date: [July 9, 2016, 9:28am UTC](https://forum.mautic.org/t/lost-landing-page-after-upgrade-2-0/3892/4 "2016-07-09T09:28:20Z")
Lost existing land page content after upgrade 2.0. Page URL gives a 500 Internal Server Error and when edit the landing page, content has been lost.