Help on installing process, Please!

I was stucking at this screen for few times. Does anyone know how to fix it?

I'm using OpenCore 0.6.2 and following Dortania guide

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error

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My spec is

Asus ROG GL502VT

CPU : i7 6700HQ ,

IGPU : UHD 530,

DGPU : GTX 970m (disabled),

RAM : 12 Gb