Can't launch the UE4 Handheld AR Demo on my android phone

Please help. I bought a Huawei P20 Pro just so that I could use Handheld AR Demo on my phone, except that I can’t seem to launch it. It’s taken over an hour, the UE4 Ar Demo icon has appeared on my phone, but this is the log output I’m getting:

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I’m connected to the internet on both phone and PC