Yeelight bulb color 1S wifi stopped working

When turning the bulb on through the wall power switch it blinks several times in a few seconds intervals. Sometimes it replaces colors (looks like pairing mode)
It start happening without any reason, I have 3 other lights that works great.
I tried to reset it and pair it a few times, sometimes it fails, sometimes success but it losses the connection forever.

I’ve tried different bulb sockets and it seems the problem is consistent.

What could be the problem? Please assist… thanks.