Export --> Audio Mixdown mp3 file

I have Cubase AI 8. when I tried to export mp3 file, I got the pop up eLicenser Control-Message “The license required…”.
So I went to the online shop and downloaded “mp3 upgrade patch” with payment.
But still I cannot expot mp3 file, and getting same pop up eLicenser Control-Message “The license required…”.
Anybody knows why?

Hi and welcome,

I have to say, I forgot, when the MP3 codec became part of Cubase license. It might be it was after Cubase 8.

So if you bought the MP3 upgrade patch, did you activate it in the eLCC application, please?