Failed to drop ACPI 54445353

* Hardware: CPU: Intel Core i5-3750
GPU: iGPU 2500 HD

RAM: 16gb DDR3
Motherboard/Laptop model: Lenovo Think centre
Screen(s) Number: 1
Screen(s) Resolution: 1920 x 1200
Ethernet Card: Realtek 8111

What guide/tool I followed: https://dortania.github.io/OpenCore-Install-Guide/config.plist/ivy-bridge.html

When booting from my EFI USB stick I can't choose an OS, I only get the option windows (See foto: https://imgur.com/a/dvK09FK). In the OC log files I get the following message:
00:000 00:000 OC: Failed to drop ACPI 54445353 0000006D50757043 0 (1) - Not Found

00:030 00:030 OC: Failed to drop ACPI 54445353 0074734930757043 0 (1) - Not Found
I have googled this error, but either the questions have not been answered or their system does not match mine.

My config: https://pastebin.com/e3A5Zt32
Thanks for any help in advance.