Unable to link yeelight to Google home anymore


I was using yeelight app alongside with Google home for several years and it worked fine.
I am using 3 mi led smart bulb white and colour lamps
I had also linked yeelight account to mi home app and mi home app to Google home.
I had set up different scenarios in yeelight app. And I was able to control it from Google home

However one day it stopped working
I managed to get access back via the mi home app however I am still unable to link the yeelight app to Google

Could you help me linking yeelight app to Google home

My id is: 1891127939
Server : Europe and Africa (Francfort)

Thank you