Confused with keypairs
I'm using surfshark vpn all the way from china, and though surfshark works fine on iOS (ipad and iphone) prior to the Windows 6.9.0 update, I haven't had any issues. I managed to update it to 6.9.0, faced issues and learned about manual setup on windows. Basically, do I need to generate a new keypair everytime I wanna add a tunnel onto Wireguard? I followed the tutorial and pasted the public key under 'I have a key pair'. Tried to add it to wire guard and everytime it just faces an error. It worked when I generated new key pairs, but I saw online that I could reuse key pairs? Did I potentially do something wrong in the process or did I get confused halfway?
My vpn works, I'm just confused