With CrossEPG, it depends on whether you have just updated to 6.7 from a much older version. CrossEPG changed some time ago and the advice was to uninstall the plugin, then delete the CrossEPG folder completely on your receiver and re-install. It works fine for me in my test machines but I only use it to obtain EPG from 28.2E satellite. The built-in OpenTV zapper does the same job without requiring any separate database.