It is not possible to download any app

[DBG  | neptune.apps] Neptune-UI::Application Store - Check Server                                                                        [ServerConfig.qml:75]
[DBG  | neptune.sysui] HTTP GET to http://demoappsdeploy.qt.io:8513/hello?platform=NEPTUNE3&version=1&architecture=x86_64-little_endian-llp64-winnt                                                                         [JSONBackend.js:62]
[DBG  | neptune.sysui] HTTP GET to http://demoappsdeploy.qt.io:8513/login?username=t&password=t&imei=112163001487801                        [JSONBackend.js:62]
[DBG  | neptune.apps] Login Succeeded                    [ServerConfig.qml:119]
[DBG  | qml] server login successful                   [DownloadsStore.qml:203]
[DBG  | neptune.sysui] HTTP GET to http://demoappsdeploy.qt.io:8513/app/purchase?id=com.pelagicore.samegame&device_id=00-11-22-33-44-55     [JSONBackend.js:62]
[DBG  | neptune.apps] :::AppStoreServer::: download failed: [Errno 2] No such file or directory: u'com.pelagicore.samegame_All_'        [DownloadsStore.qml:80]
[WARN | am.qml] Error: Cannot assign [undefined] to QUrl                                                                               [DownloadsStore.qml:118]