certificates are very painful for new developer apple you should keep a Youtube channel for iOS development and make a video on this strange thing we are new developer no one is teach me about certificate i can not find best tutorial about and i am lot's of worries i am not able to tolerate this type of pain

For anyone who ends up here in the future, the solution is simple: I switched to a mobile hotspot, and it worked. I was using Wi-Fi and kept getting that error, but I found a comment from another developer suggesting to switch networks. You don’t need to change your browser or device, just change the network. Good luck!