The CA certificate must have been issued.

Step-by-step instruction

Publish CA

Excerpt

name	Publish CA/SA

In AWB, select the CA/SA certificate in the Authority Hierarchy in the explorer bar.
Select Tools > Publish Authority and select the publication procedure you want to use.
In the Signature dialog box, enter the PIN code.

Signing completes the task and returns you to the AWB window.

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