Login failure on Linux Management Console

Hi,

I've just installed the test version of Acronis 12 on a Ubuntu 16.04 

The installation went without any problem, but I can't login to the Management Console with user "root"

I see the following error in web_server.log

{"filename": "rest.py", "thread": 139627741730560, "sourceHost": "cloud", "processName": "MainProcess", "exception": ["Traceback (most recent call last):\n", "  File \"/usr/lib/Acronis/WebServer/wcs/web/session.py\", line 126, in __init__\n    on_event=self.session_disconnected)\n", "  File \"/usr/lib/Acronis/WebServer/wcs/web/session.py\", line 62, in obtain\n    return wcs.infra.connect(host, host_type, username, password, session_data, jwt, on_event=on_event)\n", "  File \"/usr/lib/Acronis/WebServer/wcs/infra/__init__.py\", line 8, in connect\n    session_data=session_data, jwt=jwt, on_event=on_event)\n", "  File \"/usr/lib/Acronis/WebServer/wcs/infra/session.py\", line 38, in __init__\n    user_data=on_event)\n", "acrort.Exception: Error 0xf90004: ASYNC: Unidentified job.\n| line: 0xd9612b4aaebb8e3f\n| file: k:/3689/enterprise/common/async/base_job.cpp:40\n| function: Describe\n| $module: asyncipc_lxa64_3689\n|\n| error 0xf90004: Imp::BrokerJobPool\n| line: 0xbfc7c0801e28e99f\n| file: k:/3689/enterprise/common/async_ipc/async/imp/broker_on_socket.cpp:219\n| function: BrokerOnSocket\n| $module: asyncipc_lxa64_3689\n|\n| error 0x30068\n| line: 0x748a6a848fe8cec3\n| file: k:/3689/enterprise/common/async_ipc/async/service_calls_ab12.cpp:36\n| function: MakeAuthError\n| $module: asyncipc_lxa64_3689\n|\n| error 0x30002: FailedToWaitExternalApp\n| line: 0xc7a6887aebf4e080\n| file: k:/3689/enterprise/common/async_ipc/async/cred_srv.cpp:276\n| function: Authenticate\n| $module: asyncipc_lxa64_3689\n", "\nDuring handling of the above exception, another exception occurred:\n\n", "Traceback (most recent call last):\n", "  File \"/usr/lib/Acronis/WebServer/wcs/web/rest.py\", line 95, in wcs_api_wrapper\n    result = func(*args, **kwargs)\n", "  File \"/usr/lib/Acronis/WebServer/wcs/model/descriptor/resource.py\", line 217, in handle_request\n    return handle(request, session, **kwargs)\n", "  File \"/usr/lib/Acronis/WebServer/wcs/model/descriptor/handler.py\", line 145, in execute_action\n    return action(session, **params)\n", "  File \"/usr/lib/Acronis/WebServer/wcs/model/session.py\", line 121, in _establish_connection\n    session = _connect_with_credentials(data, timeout, remember)\n", "  File \"/usr/lib/Acronis/WebServer/wcs/model/session.py\", line 39, in _connect_with_credentials\n    data=prepare_session_data(login=data.get('username')))\n", "  File \"/usr/lib/Acronis/WebServer/wcs/web/session.py\", line 409, in create\n    connection_pool=connection_pool, session_id=session_id)\n", "  File \"/usr/lib/Acronis/WebServer/wcs/web/session.py\", line 129, in __init__\n    raise exceptions.process_auth_error(e.to_error(), None, get_language)\n", "wcs.web.exceptions.ApiException: {\"date\":\"2017-03-01T14:01:14.014243+00:00\",\"troubleshoot\":null,\"cause\":\"Authorization required.\",\"reason\":\"wcsAuthorizationRequired\",\"effect\":null,\"context\":{\"_internal\":\"100009:-1:-1\"}}\n"], "message": "", "stack_info": null, "funcName": "wcs_api_wrapper", "@version": 1, "module": "rest", "created": 1488376874.014476, "levelno": 40, "lineno": 135, "process": 24443, "@timestamp": "2017-03-01T14:01:14.015Z", "name": "root", "threadName": "Thread-17", "msecs": 14.47606086730957, "levelname": "ERROR", "relativeCreated": 13741348.381757736, "pathname": "/usr/lib/Acronis/WebServer/wcs/web/rest.py", "args": []}
{"filename": "rest.py", "thread": 139627741730560, "sourceHost": "cloud", "processName": "MainProcess", "message": "| None | -POST | /api/ams/session? | (0 in progress) | (2.175921 response time) | (0 bytes response size)", "stack_info": null, "relativeCreated": 13741349.699258804, "pathname": "/usr/lib/Acronis/WebServer/wcs/web/rest.py", "@version": 1, "module": "rest", "created": 1488376874.0157936, "levelno": 10, "lineno": 157, "process": 24443, "@timestamp": "2017-03-01T14:01:14.016Z", "name": "root", "threadName": "Thread-17", "levelname": "DEBUG", "funcName": "wcs_api_wrapper", "msecs": 15.793561935424805, "args": {"method": "POST", "requestCount": 0, "path": "/api/ams/session?", "responseSize": 0, "processingTime": 2.1759207248687744, "account": null}}