Error 503 Backend fetch failed - After install an extension

miguelcb_91 2021-03-22 16:19:53 UTC #1

Keywords: Magento - Virtual Machines - Technical issue - Other
bnsupport ID: 7cd8aaf8-45e8-071e-d5c5-38401b29408d
Description:
Hello,

I am using the image for virtual machine in order to create a test environment, I installed the sample data and make it work, the website is working correctly until I try to install an extension for the website or run setup:upgrade. Every time I try to do something I get 503 error.

Error 503 Backend fetch failed
Backend fetch failed

Guru Meditation:
XID: 360501

Varnish cache server

Please, could you help me?

Regards,

gongomgra 2021-03-23 10:11:17 UTC #2

Hi @miguelcb_91,

Thanks for using Bitnami. I checked your bnsupprot bundle and I see the next PHP error in Apache. Can you check it?

[Mon Mar 22 15:59:42.832729 2021] [proxy_fcgi:error] [pid 18874:tid 140019171825408] [client 127.0.0.1:52136] AH01071: Got error 'PHP message: PHP Warning:  Class 'Laminas\Mvc\Controller\PluginManagerSM2' not found in /bitnami/magento/vendor/laminas/laminas-mvc/src/autoload.php on line 16PHP message: PHP Fatal error:  Uncaught Error: Interface 'Psr\Container\ContainerInterface' not found in /bitnami/magento/vendor/container-interop/container-interop/src/Interop/Container/ContainerInterface.php:13
Stack trace:
#0 /bitnami/magento/vendor/composer/ClassLoader.php(444): include()
#1 /bitnami/magento/vendor/composer/ClassLoader.php(322): Composer\Autoload\includeFile()
#2 [internal function]: Composer\Autoload\ClassLoader->loadClass()
#3 /bitnami/magento/vendor/laminas/laminas-servicemanager/src/ServiceLocatorInterface.php(16): spl_autoload_call()
#4 /bitnami/magento/vendor/composer/ClassLoader.php(444): include('/bitnami/magent...')
#5 /bitnami/magento/vendor/composer/ClassLoader.php(322): Composer\Autoload\includeFile()
#6 /bitnami/magento/vendor/laminas/laminas-zendframework-bridge/src/Autoloader.php(112): Composer\Autoload\ClassLoader->loadClass()
#7 [internal function]: Laminas\ZendFrameworkBridge\Autoloader::Laminas\ZendFrameworkBridge\{closure}()
#8 /bitnami/magento/vendor/laminas/lamin...'

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