Unknown configuration value '/DmisystemVersion' when configuring a macOS virtual machine on virtualbox

I'm currently trying to run macOS Catalina through Virtualbox on my windows 10 laptop. After setting up the virtual machine in Virtualbox, I input this code into the command prompt:

VBoxManage.exe modifyvm "macOS" --cpuidset 00000001 000106e5 00100800 0098e3fd bfebfbff
VBoxManage setextradata "macOS" "VBoxInternal/Devices/efi/0/Config/DmiSystemProduct" "iMac11,3"
VBoxManage setextradata "macOS" "VBoxInternal/Devices/efi/0/Config/DmiSystemVersion" "1.0"
VBoxManage setextradata "macOS" "VBoxInternal/Devices/efi/0/Config/DmiBoardProduct" "Iloveapple"
VBoxManage setextradata "macOS" "VBoxInternal/Devices/smc/0/Config/DeviceKey" "ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc"
VBoxManage setextradata "macOS" "VBoxInternal/Devices/smc/0/Config/GetKeyFromRealSMC" 1```

**Then when I try to run the virtual machine, I get this error**:

Failed to open a session for the virtual machine macOS.

Unknown configuration value '/DmisystemVersion' found in the configuration of efi instance #0 (VERR_CFGM_CONFIG_UNKNOWN_VALUE).

Result Code: E_FAIL (0x80004005)
Component: ConsoleWrap
Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

**It seems there's an error with my /DmisystemVersion input. I've tried the same command from multiple sources so it wouldn't make much sense if it were a typo. Is there a different configuration value I should be using?
Any links or ideas are appreciated, thanks!

here are the website's I've been using:
https://www.makeuseof.com/tag/macos-windows-10-virtual-machine/
https://www.saintlad.com/install-macos-sierra-in-virtualbox-on-windows-10/
https://gist.github.com/rob-smallshire/0c4403afb0523dd57c9f4b3693344f14
https://www.wikigain.com/complete-guide-fix-virtualbox-errors-installing-mac-os-x/