Backend nicht erreichbar

Hello All,

 

I need some help here to fix an issue with my Shopware Site.

This website was Shopware 5.1.3 and I made the update to 5.6.8. I made the Major updates one by one and checked the Backend and Frontend for any errors.

When I came to 5.6.8 everything was working but after clearing the cache Backend was not found with HTTP500 error.

Stack Trace:

[21-Oct-2020 15:04:34 Europe/Berlin] PHP Fatal error:  Uncaught Error: Undefined class constant ‘REVISION’ in /html/shopware/var/cache/production_202008121209/templates/backend_en_GB_5b766/86/39/4a/86394a60a37ba26d8925d5409ca4656a55f7597f.snippet.menu_entry.tpl.php:205
Stack trace:
#0 /html/shopware/var/cache/production_202008121209/templates/backend_en_GB_5b766/86/39/4a/86394a60a37ba26d8925d5409ca4656a55f7597f.snippet.menu_entry.tpl.php(69): content_5f902a4114e354_03355628(Object(Enlight_Template_Default))
#1 /html/shopware/engine/Library/Smarty/sysplugins/smarty_internal_templatebase.php(180): content_5f902a411af0e6_05746088(Object(Enlight_Template_Default))
#2 /html/shopware/engine/Library/Enlight/View/Default.php(295): Smarty_Internal_TemplateBase->fetch()
#3 /html/shopware/engine/Library/Enlight/Controller/Plugins/ViewRenderer/Bootstrap.php(212): Enlight_View_Default->render(Object(Enlight_Template_Default))
#4 /html/shopware/engine/Library/Enlight/Controller/Plugins/ViewRenderer/Bootstrap.php(238): Enlight_Controller_Plugins_ViewRenderer_Bootstrap->renderTe in /html/shopware/var/cache/production_202008121209/templates/backend_en_GB_5b766/86/39/4a/86394a60a37ba26d8925d5409ca4656a55f7597f.snippet.menu_entry.tpl.php on line 205
 

Domain:

http://slowmioupdate.mw.imc-hosting.de/backend/

Can anyone please help me with the situation?

Try to delete the content of your cache folder on the server.

I did it already but still getting the same error.