Yeelight Ceiling lamp YLPW01YL issue

Hi! When I switch on the lamp it is starts flashing with different lights and at the end stays with yellow light on. If I switch off the light and than switch on there is no light. Only for the second time the lamp switches on and start blinking again. Besides I cannot connect to the lamp with any app: neither of Yeelight nor of Mi…
Please suggest what to do.
My account: 6198901683
Thank you a lot,