How to fix error -25257 on macOS when adding a certificate?

Question

macOS

We purchased the RutokenEDS signature, installed both the CryptoPro CSP and the application from the rutoken on the poppy. CryptoPro sees the token, adds it to the personal vault correctly, the pin code verification also passes. But when I try to view the certificate or add it to the keychain, I get an error

Answer 1

Check if the root certificates of the Certification Authority are installed.