Weewell WHC740 Constant Water Error Signal

I purchased the Weewell WHC740 model, but it constantly shows a water error signal. Even after filling the tank, the issue persists. I’ve tried turning it off and on, emptying and refilling the water, but nothing works. What’s going on with this device? It seems like many people are facing the same issue, yet no solution has been provided. How are we supposed to fix this? I’m frustrated and need a proper resolution. Weewell, please address this ongoing problem and provide guidance on how to resolve it.