Keychain issue in certificate and profile installer (ios, React Native)

Hi !
I’m pretty new to bitrise. I managed to setup CI for playstore deployment. I’m currently working on the appStore deployment…
I’m stuck at the “Certificate and profile installer” step. What is the use of the keychain field ? Do I have something to provide? Or i let the default path and it will create a dedicated keychain?

I tried to let it as it was and I got the next error:

What am I missing?

Here is the build url: Bitrise - Mobile Continuous Integration and Delivery - iOS & Android Build Automation

Thank you !

Hello!

Can you please check here:

Thank you,

Thi