IOS uses the networkextension framework to connect to OpenVPN. The prompt is invalid

Question

I want to connect through OpenVPN. I am using the framework of network extension I configure the request to start connecting and then automatically disconnect. I checked all the groups, but it didn't help

Please help me！

Xcode Version：Version 13.3.1 (13E500a)

iOS Version：iOS 12.4.8

At first, I thought there was a problem with my ovpn configuration file, but I used it on Android PC through this configuration file. VPN can be used normally, so I don't think it's an ovpn configuration problem

This is the output from my console：

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