Symfony exception. critical errors in back. office

[penster]

we are having major problems in. the admin ... blank. white pages unable to open reductions or commandes unles in debug mode and. getting. a. blank screen with content coding error.

this is what I got from mode debug;

CRITICAL 08:00:51phpUncaught Exception: You have requested a non-existent service "mbo.tab.collection.provider".

CRITICAL 08:00:52requestUncaught PHP Exception Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: "You have requested a non-existent service "mbo.tab.collection.provider"." at /home/arigomot/www/var/cache/dev/classes.php line 3418

ServiceNotFoundException

Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "mbo.tab.collection.provider". at var/cache/dev/classes.php:3418 at Symfony\Component\DependencyInjection\Container->get('mbo.tab.collection.provider') (modules/ps_mbo/ps_mbo.php:409) at ps_mbo->get('mbo.tab.collection.provider') (modules/ps_mbo/ps_mbo.php:388) at ps_mbo->shouldAttachRecommendedModulesButton() (modules/ps_mbo/ps_mbo.php:306) at ps_mbo->hookActionAdminControllerSetMedia(array('cookie' => object(Cookie), 'cart' => object(Cart), 'altern' => 7)) (classes/Hook.php:970) at HookCore::coreCallHook(object(ps_mbo), 'hookactionAdminControllerSetMedia', array('cookie' => object(Cookie), 'cart' => object(Cart), 'altern' => 7)) (classes/Hook.php:355) at HookCore::callHookOn(object(ps_mbo), 'actionAdminControllerSetMedia', array('cookie' => object(Cookie), 'cart' => object(Cart), 'altern' => 7)) (classes/Hook.php:907) at HookCore::exec('actionAdminControllerSetMedia') (classes/controller/AdminController.php:2745) at AdminControllerCore->setMedia(false) (controllers/admin/AdminOrdersController.php:340) at AdminOrdersControllerCore->setMedia() (classes/controller/Controller.php:277) at ControllerCore->run() (classes/Dispatcher.php:515) at DispatcherCore->dispatch() (admin421wxxufz/index.php:97)

it says. also http internal server error 500?

running Prestashop 1.7.6.8

with Warehouse theme 4.3

 

Edited November 27, 2020 by penster (see edit history)

[penster]

Anyone ?

[JBW]

First try to hart reset the cache by deleting /var/cache on the server.

If this doesn't help, try to reset ps_mbo and/or to install new version following this instructions:

https://github.com/PrestaShopCorp/ps_mbo/releases