KB2566: Veeam Agent for Microsoft Windows deployment fails ...
https://www.veeam.com/kb256606.04.2018 · To verify which CA certificate is needed to validate a signed msi installer, use the SigCheck utility from SysInternals to retrieve information about the certificate chain the msi was signed with. For example, to view the certificate chain of the Veeam Agent for Microsoft Windows version 5.0 installer, run the following command on the Veeam Backup & Replication server:
Troubleshooting Issuing ACME Certificates | cert-manager
https://cert-manager.io/docs/faq/acme26.07.2020 · When requesting ACME certificates, cert-manager will create Order and Challenges to complete the request. As such, there are more resources to investigate and debug if there is a problem during the process. You can read more about these resources in the concepts pages. Before you start here you should probably take a look at our general troubleshooting guide 1.