Twig runtime error when trying to enter an order in the back office

[PushyMr]

Hello, I seem to have run into an error, where i cannot open up the order itself in the back office. 
 

CRITICAL13:08:21requestUncaught PHP Exception Twig\Error\RuntimeError: "An exception has been thrown during the rendering of a template ("Warning: Attempt to read property "id" on null")." at /home/deislt/domains/demis.batukalnas.lt/public_html/src/PrestaShopBundle/Resources/views/Admin/layout.html.twig line 38

{ "exception": {} }

CRITICAL13:08:21phpUncaught Exception: An exception has been thrown during the rendering of a template ("Warning: Attempt to read property "id" on null").

{ "exception": {} }

i am also attaching a picture of a stack trace for the error

When i tryed in the symphony debug menu to open up more details from the controller, where i could see the passed variables, it seems, that viewAction method is not working propperly and it gives me file not readable error. This error is after i upgraded with one click upgrade from 1.7.8.2 to 8.1.2