[1] Symfony\Component\Debug\Exception\ContextErrorException: Notice: Undefined index: useSeconds
    at n/a
        in /home/yan/prog/various_repos/ezpublish-kernel/eZ/Publish/Core/Persistence/Legacy/Content/FieldValue/Converter/DateAndTimeConverter.php line 80

    at Symfony\Component\Debug\ErrorHandler->handleError('8', 'Undefined index: useSeconds', '/home/yan/prog/various_repos/ezpublish-kernel/eZ/Publish/Core/Persistence/Legacy/Content/FieldValue/Converter/DateAndTimeConverter.php', '80', array('fieldDef' => object(FieldDefinition), 'storageDef' => object(StorageFieldDefinition)))
        in /home/yan/prog/various_repos/ezpublish-kernel/eZ/Publish/Core/Persistence/Legacy/Content/FieldValue/Converter/DateAndTimeConverter.php line 80

    at eZ\Publish\Core\Persistence\Legacy\Content\FieldValue\Converter\DateAndTimeConverter->toStorageFieldDefinition(object(FieldDefinition), object(StorageFieldDefinition))
        in /home/yan/prog/various_repos/ezpublish-kernel/eZ/Publish/Core/Persistence/Legacy/Content/Type/Mapper.php line 337

    at eZ\Publish\Core\Persistence\Legacy\Content\Type\Mapper->toStorageFieldDefinition(object(FieldDefinition), object(StorageFieldDefinition))
        in /home/yan/prog/various_repos/ezpublish-kernel/eZ/Publish/Core/Persistence/Legacy/Content/Type/Handler.php line 553

    at eZ\Publish\Core\Persistence\Legacy\Content\Type\Handler->updateFieldDefinition('13', '1', object(FieldDefinition))
        in /home/yan/prog/various_repos/ezpublish-kernel/eZ/Publish/Core/Persistence/Legacy/Content/Type/MemoryCachingHandler.php line 429

    at eZ\Publish\Core\Persistence\Legacy\Content\Type\MemoryCachingHandler->updateFieldDefinition('13', '1', object(FieldDefinition))
        in /home/yan/prog/various_repos/ezpublish-kernel/eZ/Publish/Core/Persistence/Cache/ContentTypeHandler.php line 346

    at eZ\Publish\Core\Persistence\Cache\ContentTypeHandler->updateFieldDefinition('13', '1', object(FieldDefinition))
        in /home/yan/prog/various_repos/ezpublish-kernel/eZ/Publish/Core/Repository/ContentTypeService.php line 1470

    at eZ\Publish\Core\Repository\ContentTypeService->updateFieldDefinition(object(ContentTypeDraft), object(FieldDefinition), object(FieldDefinitionData))
        in /home/yan/prog/various_repos/ezpublish-kernel/eZ/Publish/Core/SignalSlot/ContentTypeService.php line 505

    at eZ\Publish\Core\SignalSlot\ContentTypeService->updateFieldDefinition(object(ContentTypeDraft), object(FieldDefinition), object(FieldDefinitionData))
        in /home/yan/prog/ezplatform/app/cache/dev/appDevDebugProjectContainer.php line 33226

    at eZPublishCoreRepositoryContentTypeService_000000002056516000000000246f2daae2cace4bb1df548b3e8e980d01553b77->updateFieldDefinition(object(ContentTypeDraft), object(FieldDefinition), object(FieldDefinitionData))
        in /home/yan/prog/various_repos/repository-forms/lib/Form/Processor/ContentTypeFormProcessor.php line 84

    at EzSystems\RepositoryForms\Form\Processor\ContentTypeFormProcessor->processDefaultAction(object(FormActionEvent), 'contentType.update', object(TraceableEventDispatcher))
        in  line 

    at call_user_func(array(object(ContentTypeFormProcessor), 'processDefaultAction'), object(FormActionEvent), 'contentType.update', object(TraceableEventDispatcher))
        in /home/yan/prog/ezplatform/vendor/symfony/symfony/src/Symfony/Component/EventDispatcher/Debug/WrappedListener.php line 61

    at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke(object(FormActionEvent), 'contentType.update', object(ContainerAwareEventDispatcher))
        in  line 

    at call_user_func(object(WrappedListener), object(FormActionEvent), 'contentType.update', object(ContainerAwareEventDispatcher))
        in /home/yan/prog/ezplatform/vendor/symfony/symfony/src/Symfony/Component/EventDispatcher/EventDispatcher.php line 158

    at Symfony\Component\EventDispatcher\EventDispatcher->doDispatch(array(object(WrappedListener), object(WrappedListener)), 'contentType.update', object(FormActionEvent))
        in /home/yan/prog/ezplatform/vendor/symfony/symfony/src/Symfony/Component/EventDispatcher/EventDispatcher.php line 46

    at Symfony\Component\EventDispatcher\EventDispatcher->dispatch('contentType.update', object(FormActionEvent))
        in /home/yan/prog/ezplatform/vendor/symfony/symfony/src/Symfony/Component/EventDispatcher/Debug/TraceableEventDispatcher.php line 124

    at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch('contentType.update', object(FormActionEvent))
        in /home/yan/prog/various_repos/repository-forms/lib/Form/ActionDispatcher/AbstractActionDispatcher.php line 79

    at EzSystems\RepositoryForms\Form\ActionDispatcher\AbstractActionDispatcher->dispatchDefaultAction('contentType.update', object(FormActionEvent))
        in /home/yan/prog/various_repos/repository-forms/lib/Form/ActionDispatcher/AbstractActionDispatcher.php line 48

    at EzSystems\RepositoryForms\Form\ActionDispatcher\AbstractActionDispatcher->dispatchFormAction(object(Form), object(ContentTypeData), 'publishContentType', array('languageCode' => 'eng-GB'))
        in /home/yan/prog/various_repos/PlatformUIBundle/Controller/ContentTypeController.php line 300

    at EzSystems\PlatformUIBundle\Controller\ContentTypeController->updateContentTypeAction(object(Request), '13', 'eng-GB')
        in  line 

    at call_user_func_array(array(object(ContentTypeController), 'updateContentTypeAction'), array(object(Request), '13', 'eng-GB'))
        in /home/yan/prog/ezplatform/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php line 139

    at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), '1')
        in /home/yan/prog/ezplatform/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php line 62

    at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), '1', true)
        in /home/yan/prog/ezplatform/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/ContainerAwareHttpKernel.php line 69

    at Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel->handle(object(Request), '1', true)
        in /home/yan/prog/ezplatform/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php line 184

    at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
        in /home/yan/prog/ezplatform/web/app.php line 66

// Synchronize form and data.
$form->handleRequest($request);