Philips Zhuyi desk lamp connection timeout

My Philips Zhuyi desk lamp was work fine at first. Then yesterday it automatically offline and i can’t re-connect it again. I can using to connect but
can not set at my account. Try everyway already not wotked, no firmwate update. My account 6193648619. Can you help?

We know nothing about Philips, this is yeelight.