Errors but don't know how to get rid off. Everything seems to work

2019-09-11 11:09:29 ERROR (SyncWorker_4) [homeassistant.components.yeelight] Unable to update device 192.168.200.247, Licht Washok: Bulb closed the connection.
2019-09-11 12:13:51 ERROR (MainThread) [homeassistant.core] Error doing job: Unclosed connection
2019-09-11 12:14:32 ERROR (MainThread) [homeassistant.core] Error doing job: Unclosed connection
2019-09-11 14:56:03 ERROR (MainThread) [aiohttp.server] Error handling request
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/aiohttp/web_protocol.py", line 418, in start
    resp = await task
  File "/usr/local/lib/python3.7/site-packages/aiohttp/web_app.py", line 458, in _handle
    resp = await handler(request)
  File "/usr/local/lib/python3.7/site-packages/aiohttp/web_middlewares.py", line 119, in impl
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/real_ip.py", line 40, in real_ip_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/ban.py", line 73, in ban_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/auth.py", line 231, in auth_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/view.py", line 128, in handle
    result = await result
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/http.py", line 37, in get
    return await WebSocketHandler(request.app["hass"], request).async_handle()
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/http.py", line 199, in async_handle
    await self._writer_task
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/http.py", line 66, in _writer
    await self.wsock.send_json(message, dumps=JSON_DUMP)
  File "/usr/local/lib/python3.7/site-packages/aiohttp/web_ws.py", line 296, in send_json
    await self.send_str(dumps(data), compress=compress)
  File "/usr/local/lib/python3.7/site-packages/aiohttp/web_ws.py", line 283, in send_str
    await self._writer.send(data, binary=False, compress=compress)
  File "/usr/local/lib/python3.7/site-packages/aiohttp/http_websocket.py", line 643, in send
    await self._send_frame(message, WSMsgType.TEXT, compress)
  File "/usr/local/lib/python3.7/site-packages/aiohttp/http_websocket.py", line 620, in _send_frame
    await self.protocol._drain_helper()
  File "/usr/local/lib/python3.7/site-packages/aiohttp/base_protocol.py", line 81, in _drain_helper
    await waiter
  File "/usr/local/lib/python3.7/asyncio/selector_events.py", line 883, in _write_ready
    n = self._sock.send(self._buffer)
BrokenPipeError: [Errno 32] Broken pipe
2019-09-11 15:37:05 ERROR (SyncWorker_7) [homeassistant.components.yeelight] Unable to update device 192.168.200.247, Licht Washok: A socket error occurred when sending the command.

and get alot of this errors as well

2019-09-11 21:55:29 ERROR (MainThread) [homeassistant.core] Error doing job: Unclosed connection
2019-09-11 21:56:44 ERROR (SyncWorker_4) [homeassistant.components.yeelight] Unable to update device , Keuken licht: A socket error occurred when sending the command.
2019-09-11 22:07:58 WARNING (MainThread) [homeassistant.components.ps4.media_player] PS4 could not be reached
2019-09-12 03:12:59 WARNING (MainThread) [homeassistant.helpers.entity] Update of vacuum.xiaomi_vacuum_cleaner is taking over 10 seconds
2019-09-12 03:12:59 ERROR (SyncWorker_5) [miio.device] Unable to discover a device at address 
2019-09-12 03:12:59 WARNING (SyncWorker_5) [homeassistant.components.xiaomi_miio.vacuum] Got exception while fetching the state: Unable to discover the device 
2019-09-12 03:40:47 WARNING (Thread-5) [pychromecast.socket_client] [:8009] Heartbeat timeout, resetting connection
2019-09-12 07:22:49 WARNING (MainThread) [homeassistant.components.ps4.media_player] PS4 could not be reached ```