Linked Yeelight offline

I have 3 Yeelight lights that were working just fine, but today I cannot control them in Smartthings, they are always offline, but they are working just fine in Yeelight app.
After I turn them on in Yeelight app they apear online in Smartthings app but as soon as I try to control them in Smartthings they go offline.

Already found the problem, a password change by me made the linked Yeelight not working, had to delete the linked Yeelight and link again and all is working.