Why my DNS Proxy cannot enbale

I am using NEDNSProxyProvider for dns proxy. When I installed through Xcode, my DNS proxy function is normal. But when I distributed the test through Testflight, my DNS proxy function could not be started. The error is "The operation couldn`t be completed. (NSDNSProxyErrorDomain error 3.)".

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DNS proxy providers can only be deployed to supervised devices. My best guess is that the device you’re trying to test on is not supervised, and hence this error.

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