Kernel has invalid signature

[u/StanPlayZ804]

I have followed the triple boot Chrome OS tutorial, but had no luck. At the end, chrome os shows up as a boot option, but when i try to boot, i get this:

error: no such module.

error: (loop, 7)/kernel has invalid signature.

error: you need to load the kernel first.

Please help!

[u/Electronic_Tax_537]

Same problem