Error updatin prestashop to latest version

[Prestapepe]

Hello,

 

Im getting the following error FO (BO works ok!):

 

(1/1) ContextErrorException

Notice: Undefined property: Shop::$id_theme

in FrontController.php line 13

at FrontController->init()in Controller.php line 273

at ControllerCore->run()in Dispatcher.php line 515

at DispatcherCore->dispatch()in index.php line 28

 

I have all cache switched off and the store has multishop option active... (I selected turn to default theme while migrating)

 

Ive repeated the process several times with same result.

It is driving me nuts!!

Thansk,

Prestapepe