Replacing my keystore by mistake (Android)

Hi I accidentally clear my keystore so now I have a new Keystore for Android.

When I try to import a build I have of course a message that said that my apk is not signed with the correct key.

I saw that I can update my sign key in android playstore but there many different choices.

The two that looks maybe the best permit to contact the support of upload a new key from a keystore using PEPK tool.

Using PEPK requires current keystore with password which I have with expo cli but it requires also an uploadKey from a keystore.

I know I can get back from the cli a PEM certificate for upload but is not in a keystore.

What is the best option for me ?

Many thanks for your help