CURCY Wooc… Multi CurreIcy.. can not Activate on my Website

I bought 2 licences of “CURCY – WooCommerce Multi Currency – Currency Switcher” for 2 different websites.

The first one works well, under the “Update – Auto Update Key”, appears “Key is correct. You can update automatically until xxxx 2022”

But on the second website, during activation appears “Your authentification is succefully.”, but did not stay the message “Key is correct. You can….” like on the first one.

On “my downloads” the first Key is attached to one website, the second is not attached to my website, and I don’t know how to solve it :S

Help please.

Thanks