I reinstall and use the way upgrade from newscoop 4.2.4 to 4.3.0 but this time I faced with another problems. After followed the instructions from https://github.com/sourcefabric/Newscoop/blob/v4.3/newscoop/docs/UPGRADE_4_3.md But after clear cache the site just all blank...Check log the upgrade process successfully, no error in upgrade log. Any idea? Thanks