License Error at AC400 Connect Engineering station.

We've installed Control Builder A 1.4/4 software and configured the station. After installing the permanent license, we are encountering the error "A translation is not available for error: 0x8004ABFF". Any one having the idea?
 
The error probably means the license server uses a certificate that is not trusted on the client. Is the license server on the same machine as the control builder and does it work for other licensed features?
 
There's i think 3 different ways to install the license server. If you are using the Microsoft IIS you should have a link to the website like "License Assignment Editor". If you open this link do you get any error for the certificate? Normally browser will show like a green lock or similar next to the URL
 
There's i think 3 different ways to install the license server. If you are using the Microsoft IIS you should have a link to the website like "License Assignment Editor". If you open this link do you get any error for the certificate? Normally browser will show like a green lock or similar next to the URL
Thanks for your response, Will check tomorrow and update you.
 
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