I clicked the Edge Device Builder link on Samsung's developer website, and it gave an error

hi all,I clicked the Edge Device Builder link on Samsung’s developer website( Introducing the SmartThings Edge Device Builder with Step-by-Step Tutorial | Samsung Developer), and it gave an error
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Try it again with a different browser/computer.

@Andreas_Roedl ,Hi,I have already tried it, but the same error still occurs. First, the email login interface pops up. After I enter my email and password, it prompts me to send a text message verification code. I also sent the verification code via text message, but then this error appeared. The following images are screenshots of my email login and the mobile verification code I received. I wonder if this issue is caused by my phone number being from China. I hope to get your help again. Thank you