Yellow cube Problem Heating / IO board error / Can't read RC

Hi
I’m use Yellow cube and latest firmware.

but there is still problem.

I upload use Qgroundcontrol and latest version v1.11.3(see following picture)

but there are some problem, see following picture

Is everything all right?
Am I the only one? …

Thanks.

Attached.

Firmware verision

Problem

  1. heating problem.
    Yellow cube so hot, and it’s temperature up to 61.7 celsius.

  2. I/O Board error.
    occurred I/O board error

  3. Can’t read RC