Traceback (most recent call last):



 "/usr/local/lib/python3.6/dist-packages/paperwork/frontend/util/canvas/__init__.py", line 159, in _tick


drawer.on_tick()



 "/usr/local/lib/python3.6/dist-packages/paperwork/frontend/mainwindow/scan.py", line 492, in on_tick


animator.on_tick()



 "/usr/local/lib/python3.6/dist-packages/paperwork/frontend/util/canvas/animations.py", line 202, in on_tick


self.redraw()



 "/usr/local/lib/python3.6/dist-packages/paperwork/frontend/util/canvas/drawers.py", line 183, in redraw


if not self._is_visible():



 "/usr/local/lib/python3.6/dist-packages/paperwork/frontend/util/canvas/drawers.py", line 128, in _is_visible


return self.compute_visibility(self.canvas.offset, self.canvas.size,



 "/usr/local/lib/python3.6/dist-packages/paperwork/frontend/util/canvas/__init__.py", line 300, in __get_offset


x = int(self.hadjustment.get_value())

AttributeError: 'NoneType' object has no attribute 'get_value'


Traceback (most recent call last):


 "/usr/lib/python3/dist-packages/thingsboard_gateway/connectors/request/request_connector.py", line 231, in __process_data

self.__gateway.send_to_storage(self.get_name(), data_to_send[device])


 "/usr/lib/python3/dist-packages/thingsboard_gateway/gateway/tb_gateway_service.py", line 303, in send_to_storage

if not TBUtility.validate_converted_data(data):


 "/usr/lib/python3/dist-packages/thingsboard_gateway/tb_utility/tb_utility.py", line 51, in validate_converted_data

if error is None and not data.get("deviceName"):
AttributeError: 'NoneType' object has no attribute 'get'
