AMF error when booting

When I boot up the system with the clover usb with boot args: -nv_disable=1 ; -v. I get this:

AMF: Only 128/256 slide values are usable! Valid slides: 128-255 ++++++++++++++++++++++++++++++++++++++++++++

Specs: Laptop model: HP Pavilion 15 ab209nl CPU: i7-5500U iGPU: Intel HD Graphics 5500 dGPU: NVIDIA GeForce 940M (I don’t need this in macOS)

I followed this guide (It’s only in Italian): https://youtu.be/jayH4Y2ieAo I used a macOS Catalina vm and a usb 2.0 flash drive connected to a usb 2.0 port