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(1/1) FatalThrowableError

Call to a member function getService() on null

in ps_facebook.php line 140
at Ps_facebook->getService('PrestaShop\\Module\\PrestashopFacebook\\Handler\\ErrorHandler\\ErrorHandler')in ps_facebook.php line 303
at Ps_facebook->hookDisplayHeader(array('cookie' => object(Cookie), 'cart' => object(Cart), 'altern' => 1))in Hook.php line 988
at HookCore::coreCallHook(object(Ps_facebook), 'hookDisplayHeader', array('cookie' => object(Cookie), 'cart' => object(Cart), 'altern' => 1))in Hook.php line 412
at HookCore::callHookOn(object(Ps_facebook), 'displayHeader', array('cookie' => object(Cookie), 'cart' => object(Cart), 'altern' => 1))in Hook.php line 925
at HookCore::exec('displayHeader')in FrontController.php line 575
at FrontControllerCore->initContent()in CategoryController.php line 130
at CategoryControllerCore->initContent()in Controller.php line 306
at ControllerCore->run()in Dispatcher.php line 518
at DispatcherCore->dispatch()in index.php line 28