Hi,
You had put this in the forum for "OpenVPN Connect (Windows)" but it seems to be an Easy-RSA question, so I moved it here.
I would very strongly recommend NOT running your Easy-RSA on a RPi. It's poor from a security standpoint in multiple ways. Maintain your Easy-RSA PKI on a regular computer. Even Windows is fine (although there I would probably use
wsl.exe to provide a Linux environment.)
As an alternative, if you want an all-in-one VPN suite, consider Access Server:
https://openvpn.net/vpn-server-resources/install-openvpn-access-server-on-raspberry-pi/
The free version is limited to only two connections, but then, a Pi can't really handle much more than that anyway.
Oh, sorry, I guess you did say 32-bit. We don't have AS for 32-bit. Maybe your script author provides support through the github project page?
regards, rob0