Configuration issue


We are using the commercial version 2020 in production and it works fine.
But we had one configuration issue that said something about public key 3, even though it was not in use, and it should not be used in production.
I deleted the key and now the configuration issue is No key found in SSL keystore.
Everything still works fine with using our private key and a partner key.

Why do I get this warning and is it something to worry about?

And there is a test key 4 and multiple mendelson public primary certificates. Should I delete these?
They are not in use if I check the Security tabs under Partner.

Thanks for answers.

Regards Kenneth