oh i did it as you said … one after another… so I can´t tell which command did it… 
please have a look here :
yunohost service log matrix-synapse
/var/log/matrix-synapse/homeserver.log:
- 2020-09-17 00:12:56,771 - twisted - 192 - ERROR - - File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
- 2020-09-17 00:12:56,774 - twisted - 192 - ERROR - - exec(code, run_globals)
- 2020-09-17 00:12:56,774 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/app/homeserver.py", line 687
, in <module>
- 2020-09-17 00:12:56,778 - twisted - 192 - ERROR - - main()
- 2020-09-17 00:12:56,778 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/app/homeserver.py", line 682
, in main
- 2020-09-17 00:12:56,780 - twisted - 192 - ERROR - - hs = setup(sys.argv[1:])
- 2020-09-17 00:12:56,782 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/app/homeserver.py", line 375
, in setup
- 2020-09-17 00:12:56,784 - twisted - 192 - ERROR - - hs.setup()
- 2020-09-17 00:12:56,785 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/server.py", line 283, in set
up
- 2020-09-17 00:12:56,787 - twisted - 192 - ERROR - - self.datastores = DataStores(self.DATASTORE_CLASS, self)
- 2020-09-17 00:12:56,788 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/storage/data_stores/__init__
.py", line 49, in __init__
- 2020-09-17 00:12:56,789 - twisted - 192 - ERROR - - with make_conn(database_config, engine) as db_conn:
- 2020-09-17 00:12:56,790 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/storage/database.py", line 1
10, in make_conn
- 2020-09-17 00:12:56,791 - twisted - 192 - ERROR - - db_conn = engine.module.connect(**db_params)
- 2020-09-17 00:12:56,792 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/psycopg2/__init__.py", line 127, in
connect
- 2020-09-17 00:12:56,794 - twisted - 192 - ERROR - - conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
- 2020-09-17 00:12:56,795 - twisted - 192 - ERROR - - psycopg2.OperationalError: could not connect to server: Connection refused
- 2020-09-17 00:12:56,796 - twisted - 192 - ERROR - - Is the server running on host "localhost" (127.0.0.1) and accepting
- 2020-09-17 00:12:56,797 - twisted - 192 - ERROR - - TCP/IP connections on port 5432?
- 2020-09-17 00:12:56,797 - twisted - 192 - ERROR - -
- 2020-09-17 00:13:04,171 - twisted - 192 - INFO - None- Redirected stdout/stderr to logs
- 2020-09-17 00:13:04,172 - root - 257 - WARNING - None- ***** STARTING SERVER *****
- 2020-09-17 00:13:04,174 - root - 258 - WARNING - None- Server /opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/app/homeserver.py version
1.18.0
- 2020-09-17 00:13:04,175 - root - 259 - INFO - None- Server hostname: lokal.social
- 2020-09-17 00:13:04,177 - root - 260 - INFO - None- Instance name: master
- 2020-09-17 00:13:04,177 - synapse.app.homeserver - 372 - INFO - None- Setting up server
- 2020-09-17 00:13:04,177 - synapse.server - 281 - INFO - None- Setting up.
- 2020-09-17 00:13:04,193 - twisted - 192 - ERROR - - Traceback (most recent call last):
- 2020-09-17 00:13:04,193 - twisted - 192 - ERROR - - File "/usr/lib/python3.5/runpy.py", line 193, in _run_module_as_main
- 2020-09-17 00:13:04,193 - twisted - 192 - ERROR - - "__main__", mod_spec)
- 2020-09-17 00:13:04,194 - twisted - 192 - ERROR - - File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
- 2020-09-17 00:13:04,194 - twisted - 192 - ERROR - - exec(code, run_globals)
- 2020-09-17 00:13:04,194 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/app/homeserver.py", line 687
, in <module>
- 2020-09-17 00:13:04,195 - twisted - 192 - ERROR - - main()
- 2020-09-17 00:13:04,195 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/app/homeserver.py", line 682
, in main
- 2020-09-17 00:13:04,196 - twisted - 192 - ERROR - - hs = setup(sys.argv[1:])
- 2020-09-17 00:13:04,196 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/app/homeserver.py", line 375
, in setup
- 2020-09-17 00:13:04,197 - twisted - 192 - ERROR - - hs.setup()
- 2020-09-17 00:13:04,197 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/server.py", line 283, in set
up
- 2020-09-17 00:13:04,197 - twisted - 192 - ERROR - - self.datastores = DataStores(self.DATASTORE_CLASS, self)
- 2020-09-17 00:13:04,198 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/storage/data_stores/__init__
.py", line 49, in __init__
- 2020-09-17 00:13:04,198 - twisted - 192 - ERROR - - with make_conn(database_config, engine) as db_conn:
- 2020-09-17 00:13:04,198 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synapse/storage/database.py", line 1
10, in make_conn
- 2020-09-17 00:13:04,199 - twisted - 192 - ERROR - - db_conn = engine.module.connect(**db_params)
- 2020-09-17 00:13:04,200 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/psycopg2/__init__.py", line 127, in
connect
- 2020-09-17 00:13:04,200 - twisted - 192 - ERROR - - conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
- 2020-09-17 00:13:04,200 - twisted - 192 - ERROR - - psycopg2.OperationalError: could not connect to server: Connection refused
- 2020-09-17 00:13:04,200 - twisted - 192 - ERROR - - Is the server running on host "localhost" (127.0.0.1) and accepting
- 2020-09-17 00:13:04,200 - twisted - 192 - ERROR - - TCP/IP connections on port 5432?
- 2020-09-17 00:13:04,201 - twisted - 192 - ERROR - -
journalctl:
- -- Logs begin at Wed 2020-09-16 19:46:36 CEST, end at Thu 2020-09-17 00:13:04 CEST. --
- Sep 17 00:12:56 python[21830]: 2020-09-17 00:12:56,790 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synap
se/storage/database.py", line 110, in make_conn
- Sep 17 00:12:56 python[21830]: 2020-09-17 00:12:56,791 - twisted - 192 - ERROR - - db_conn = engine.module.connect(**db_params)
- Sep 17 00:12:56 python[21830]: 2020-09-17 00:12:56,792 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/psyco
pg2/__init__.py", line 127, in connect
- Sep 17 00:12:56 python[21830]: 2020-09-17 00:12:56,794 - twisted - 192 - ERROR - - conn = _connect(dsn, connection_factory=connection_factory, **kwas
ync)
- Sep 17 00:12:56 python[21830]: 2020-09-17 00:12:56,795 - twisted - 192 - ERROR - - psycopg2.OperationalError: could not connect to server: Connection ref
used
- Sep 17 00:12:56 python[21830]: 2020-09-17 00:12:56,796 - twisted - 192 - ERROR - - Is the server running on host "localhost" (127.0.0.1) and acce
pting
- Sep 17 00:12:56 python[21830]: 2020-09-17 00:12:56,797 - twisted - 192 - ERROR - - TCP/IP connections on port 5432?
- Sep 17 00:12:56 python[21830]: 2020-09-17 00:12:56,797 - twisted - 192 - ERROR - -
- Sep 17 00:12:57 systemd[1]: matrix-synapse.service: Main process exited, code=exited, status=1/FAILURE
- Sep 17 00:12:57 systemd[1]: matrix-synapse.service: Unit entered failed state.
- Sep 17 00:12:57 systemd[1]: matrix-synapse.service: Failed with result 'exit-code'.
- Sep 17 00:13:00 systemd[1]: matrix-synapse.service: Service hold-off time over, scheduling restart.
- Sep 17 00:13:00 systemd[1]: Stopped Synapse Matrix homeserver.
- -- Subject: Unit matrix-synapse.service has finished shutting down
- -- Defined-By: systemd
- -- Support: https://www.debian.org/support
- --
- -- Unit matrix-synapse.service has finished shutting down.
- Sep 17 00:13:00 systemd[1]: Starting Synapse Matrix homeserver...
- -- Subject: Unit matrix-synapse.service has begun start-up
- -- Defined-By: systemd
- -- Support: https://www.debian.org/support
- --
- -- Unit matrix-synapse.service has begun starting up.
- Sep 17 00:13:02 systemd[1]: Started Synapse Matrix homeserver.
- -- Subject: Unit matrix-synapse.service has finished start-up
- -- Defined-By: systemd
- -- Support: https://www.debian.org/support
- --
- -- Unit matrix-synapse.service has finished starting up.
- --
- -- The start-up result is done.
- Sep 17 00:13:04 python[21857]: This server is configured to use 'matrix.org' as its trusted key server via the
- Sep 17 00:13:04 python[21857]: 'trusted_key_servers' config option. 'matrix.org' is a good choice for a key
- Sep 17 00:13:04 python[21857]: server since it is long-lived, stable and trusted. However, some admins may
- Sep 17 00:13:04 python[21857]: wish to use another server for this purpose.
- Sep 17 00:13:04 python[21857]: To suppress this warning and continue using 'matrix.org', admins should set
- Sep 17 00:13:04 python[21857]: 'suppress_key_server_warning' to 'true' in homeserver.yaml.
- Sep 17 00:13:04 python[21857]: --------------------------------------------------------------------------------
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,172 - root - 257 - WARNING - None- ***** STARTING SERVER *****
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,174 - root - 258 - WARNING - None- Server /opt/yunohost/matrix-synapse/lib/python3.5/site-packages/syn
apse/app/homeserver.py version 1.18.0
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,193 - twisted - 192 - ERROR - - Traceback (most recent call last):
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,193 - twisted - 192 - ERROR - - File "/usr/lib/python3.5/runpy.py", line 193, in _run_module_as_main
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,193 - twisted - 192 - ERROR - - "__main__", mod_spec)
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,194 - twisted - 192 - ERROR - - File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,194 - twisted - 192 - ERROR - - exec(code, run_globals)
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,194 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synap
se/app/homeserver.py", line 687, in <module>
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,195 - twisted - 192 - ERROR - - main()
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,195 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synap
se/app/homeserver.py", line 682, in main
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,196 - twisted - 192 - ERROR - - hs = setup(sys.argv[1:])
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,196 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synap
se/app/homeserver.py", line 375, in setup
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,197 - twisted - 192 - ERROR - - hs.setup()
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,197 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synap
se/server.py", line 283, in setup
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,197 - twisted - 192 - ERROR - - self.datastores = DataStores(self.DATASTORE_CLASS, self)
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,198 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synap
se/storage/data_stores/__init__.py", line 49, in __init__
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,198 - twisted - 192 - ERROR - - with make_conn(database_config, engine) as db_conn:
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,198 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/synap
se/storage/database.py", line 110, in make_conn
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,199 - twisted - 192 - ERROR - - db_conn = engine.module.connect(**db_params)
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,200 - twisted - 192 - ERROR - - File "/opt/yunohost/matrix-synapse/lib/python3.5/site-packages/psyco
pg2/__init__.py", line 127, in connect
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,200 - twisted - 192 - ERROR - - conn = _connect(dsn, connection_factory=connection_factory, **kwas
ync)
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,200 - twisted - 192 - ERROR - - psycopg2.OperationalError: could not connect to server: Connection ref
used
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,200 - twisted - 192 - ERROR - - Is the server running on host "localhost" (127.0.0.1) and acce
pting
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,200 - twisted - 192 - ERROR - - TCP/IP connections on port 5432?
- Sep 17 00:13:04 python[21857]: 2020-09-17 00:13:04,201 - twisted - 192 - ERROR - -
- Sep 17 00:13:04 systemd[1]: matrix-synapse.service: Main process exited, code=exited, status=1/FAILURE
- Sep 17 00:13:04 systemd[1]: matrix-synapse.service: Unit entered failed state.
- Sep 17 00:13:04 systemd[1]: matrix-synapse.service: Failed with result 'exit-code'.