checkm8-nonce-setter file igetnonce is broken

[sasssare]

Hello,
My instructions to how to downgrade iphone where
./main.sh
0x1111111111111111

If you get an error saying permission denied for igetnonce, then run:
cd files
ldid -S igetnonce
ldid -S irecovery
ldid -S lsusb
ldid -S eclipsa8000
ldid -S eclipsa8003

and then i used these commends because i got error igetnonce is broken and after trying these commends always i got error cd: to many arguments can you please fix the igetnonce. I added screenshots then maybe you understand better what is wrong.
Best wishes!