Node-red and alexa bug

Hi there
I’ve been using node-red (now at 0.20.7) in a raspberry pi 3 and 4 with node-red-contrib-alexa-home-skill and knxeasy with 40 nodes to integrate my knx net with alexa and for more than 1 year i had not any issues, since 1 month ago when every few hours (15/24h) it stops working: not a raspberry issue because it works and I can reach it from terminal and I even try the new pi 4, node-red in online because i can reach it at localhost/1880, everything is updated and when i give a command to alexa she tells me “ok” like as everything is fine but doesn’t work.
In order to make it work i need to turnoff/on the rasp.

Hope I have been clear
Any idea what is wrong?


Where does home assistant fit in all this?

Ops. Sorry too many windows open.
If some moderator can delete this, thank you