Many exceptions 


## Alarm system
MG5050 with a usb307 
## Environment
raspberry with docker

## Git branch
Master and dev branch
## Describe the bug
I'm using the library since almost 2 years. With IP150 and swan servers. Even if reliable, it is not very fast so I decided to go to the serial connection. My old version is working by simply adapting the connection type. 
But I wanted to give a try to new versions. Even if it seems to work, I get many exceptions in the logs, always at the same place. 

## To Reproduce
Docker version as in the wiki, even with a minimal configuration (but MQTT enabled) 

## Logs
`2021-01-04 18:29:46,796 - ERROR    - PAI.paradox.exceptions - Unhandled exception in async loop(<_UnixSelectorEventLoop running=True closed=False debug=False>): invalid literal for int() with base 10: 'disarmed'
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/paradox/lib/ps.py", line 59, in sendMessage
    *(l.call(**msgData) for l in self.listeners[topicName])
  File "/usr/local/lib/python3.7/site-packages/paradox/lib/ps.py", line 28, in call
    result = self.callback(**kwargs2)
  File "/usr/local/lib/python3.7/site-packages/paradox/interfaces/mqtt/basic.py", line 413, in _handle_panel_change
    value,
  File "/usr/local/lib/python3.7/site-packages/paradox/interfaces/mqtt/basic.py", line 440, in _publish
    publish_value = int(value)
ValueError: invalid literal for int() with base 10: 'disarmed'
`
or (more often)
`2021-01-04 18:29:46,736 - ERROR    - PAI.paradox.exceptions - Unhandled exception in async loop(<_UnixSelectorEventLoop running=True closed=False debug=False>): int() argument must be a string, a bytes-like object or a number, not 'datetime.datetime'
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/paradox/lib/ps.py", line 59, in sendMessage
    *(l.call(**msgData) for l in self.listeners[topicName])
  File "/usr/local/lib/python3.7/site-packages/paradox/lib/ps.py", line 28, in call
    result = self.callback(**kwargs2)
  File "/usr/local/lib/python3.7/site-packages/paradox/interfaces/mqtt/basic.py", line 413, in _handle_panel_change
    value,
  File "/usr/local/lib/python3.7/site-packages/paradox/interfaces/mqtt/basic.py", line 440, in _publish
    publish_value = int(value)
TypeError: int() argument must be a string, a bytes-like object or a number, not 'datetime.datetime'
`
For my test, I restarted from a new directory and a new config. I don't think that this is a problem with the previous working configuration. 
