Hi
I just got this message. (HA 2021.3.3)
Logger: homeassistant.loader
Source: loader.py:802
First occurred: 12:19:20 PM (1 occurrences)
Last logged: 12:19:20 PM
No 'version' key in the manifest file for custom integration 'floureon'. This will not be allowed in a future version of Home Assistant. Please report this to the maintainer of 'floureon'
Hopefully you could deal with this in the near future