I think you guys using KernelSU might have this problem and I have a solution.

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Hello!Today I will talk about error code 38 when you install any modules on KernelSU app.This issue is already on KernelSU github (code #2338)When installing you will get an error like this.And this will be the solution: Download the KernelSU version that matches the kernel you download (For example: if the kernel you download is 0.9.5, you must download the KernelSU app version 0.9.5)