Studio 2017 SR1 is asking activation key post upgrade

I was using Trados Studio 2017 and today upgraded it to Trados Studio 2017 SR1 along with Multerm 2017. When I accessed the upgraded Studio 2017 its asked me for an activation key and I can't reuse the key because its showing it as already in use. Before doing the upgrade I checked the FAQs for the SR1 upgrade and it mentioned that no deactivation of license is required for this update.

Please suggest a solution.

Thanks!