Crypto operation failed

Good day,

Please can I ask for assistance or advice on how to fix this error:

Email encryption using Kleopatra. The certificate was Imported but appears as invalid, we try sending encrypted mail we get the following error
"Crypto operation failed" please see attached.

I can switch off CRL checks in Kleopatra and Cgpg4win tools, then the certificate is displayed as certified in Kleopatra and email is encrypted
How can I fix this?
 

Attachments

  • kleopatra.png
    kleopatra.png
    7.4 KB · Views: 3
Back