I have a problem with my core2 program. It keeps giving me "can't create thread" but I did not use any thread in my micropython program. Does anyone know how to solve this problem?

Hi, I would like to use the core2 to connect to the WiFi in my program. I have tried the Smartconfig Demo in UiFlow but it did not work. Are there any reference I can look up or any other better solution for my case?