I start the pc whit mineos and it boots up normally
But after a min or two it gets this error and locks up
[167.996022] Kernel panic - not syncing : Timeout : Not all CPUs entered broadcast exeption handler
Plis help me 
You may/might need to potentially possibly play around with some boot/kernel command line flags/options like acpi= and noapic, etc. Look up something along the lines of “kernel boot options” and that should help with that once you put it into play or using/trying another alternative OS for MineOS/Minecraft.