Blackscreen error

Hello,
I have a HP Prodesk 600 G1 sff.
Specs :
Intel i5 4590
Intel HD 4600
Hdd 500 GB
HD audio with realtek alc221 codec
I'm using opencore bootloader.
The issue : The boot process block at this error message
I'm trying to install big sur.
Kindly help me.
Thanks!