Traceback (most recent call last):


 "/usr/local/lib/python3.7/site-packages/matrix_client/client.py", line 473, in listen_forever

self._sync(timeout_ms)


 "/usr/local/lib/python3.7/site-packages/matrix_client/client.py", line 555, in _sync

response = self.api.sync(self.sync_token, timeout_ms, filter=self.sync_filter)


 "/usr/local/lib/python3.7/site-packages/matrix_client/api.py", line 105, in sync

api_path=MATRIX_V2_API_PATH)


 "/usr/local/lib/python3.7/site-packages/matrix_client/api.py", line 673, in _send

raise MatrixHttpLibError(e, method, endpoint)
matrix_client.errors.MatrixHttpLibError: Something went wrong in GET requesting https://my.matrix.server.com/_matrix/client/r0/sync: HTTPSConnectionPool(host='my.matrix.server.com', port=443): Max retries exceeded with url: /_matrix/client/r0/sync?timeout=30000&since=s1540_279100_538_1662_398_1_147_21_1&filter=%7B+%22room%22%3A+%7B+%22timeline%22+%3A+%7B+%22limit%22+%3A+20+%7D+%7D+%7D&access_token=<removed> (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7f87731b6450>: Failed to establish a new connection: [Errno 111] Connection refused'))

> Traceback (most recent call last):


 "/home/pi/oprint/lib/python3.7/site-packages/octoprint/plugin/core.py", line 1298, in _import_plugin

module = _load_module(module_name, spec)


 "/home/pi/oprint/lib/python3.7/site-packages/octoprint/plugin/core.py", line 69, in _load_module

return imp.load_module(name, f, filename, details)


 "/home/pi/oprint/lib/python3.7/site-packages/octoprint/vendor/imp.py", line 238, in load_module

return load_package(name, filename)


 "/home/pi/oprint/lib/python3.7/site-packages/octoprint/vendor/imp.py", line 212, in load_package

return _load(spec)


 "<frozen importlib._bootstrap>", line 696, in _load


 "<frozen importlib._bootstrap>", line 677, in _load_unlocked


 "<frozen importlib._bootstrap_external>", line 728, in exec_module


 "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed


 "/home/pi/oprint/lib/python3.7/site-packages/octoprint_CMfgDataAcquisition/__init__.py", line 13, in <module>

from apscheduler.schedulers.background import BackgroundScheduler
ModuleNotFoundError: No module named 'apscheduler'
