No sync between AdobePortfolio and Lightroom

Hi everybody,

In the last two days I haven't been able to upload pictures to my portofolio on AdobePortfolio directly from Lightroom.

If I go to the greed and try to upload pictures clicking the LR button it simply doesn't open. The only possibility I have is to upload pictures from a folder.

I've changed browser (from Safari to Chrome) but no improvement.

Also, it seems that the Lightroom button has disappeared. 

Do you have any idea? 

Thanks a lot!