Errorlog NewsApp NC14.0.3 on RPI3B+

Error	index	TypeError: Argument 1 passed to OCA\News\Db\Feed::setLastModified() must be of the type integer or null, string given, called in /var/www/nextcloud/apps/news/lib/Db/NewsMapper.php on line 44

    /var/www/nextcloud/apps/news/lib/Db/NewsMapper.php - line 44:

    OCA\News\Db\Feed->setLastModified("1539591716700881")

    /var/www/nextcloud/apps/news/lib/Service/FeedService.php - line 144:

    OCA\News\Db\NewsMapper->insert(OCA\News\Db\Feed { id: null})

    /var/www/nextcloud/apps/news/lib/Controller/FeedController.php - line 151:

    OCA\News\Service\FeedService->create("http://plan ... l", 0, "ncp", null, null, null)

    /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php - line 166:

    OCA\News\Controller\FeedController->create("http://plan ... l", 0, null, null, null)

    /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php - line 99:

    OC\AppFramework\Http\Dispatcher->executeController(OCA\News\Con ... {}, "create")

    /var/www/nextcloud/lib/private/AppFramework/App.php - line 118:

    OC\AppFramework\Http\Dispatcher->dispatch(OCA\News\Con ... {}, "create")

    /var/www/nextcloud/lib/private/AppFramework/Routing/RouteActionHandler.php - line 47:

    OC\AppFramework\App::main("OCA\\News\\ ... r", "create", OC\AppFramew ... {}, { _route: "news.feed.create"})

    OC\AppFramework\Routing\RouteActionHandler->__invoke({ _route: "news.feed.create"})

    /var/www/nextcloud/lib/private/Route/Router.php - line 297:

    call_user_func(OC\AppFramew ... {}, { _route: "news.feed.create"})

    /var/www/nextcloud/lib/base.php - line 987:

    OC\Route\Router->match("/apps/news/feeds")

    /var/www/nextcloud/index.php - line 42:

    OC::handleRequest()

	2018-10-15T10:21:56+0200