License activation key doesn't work in new version of Bizagi Modeler

I already sent emails about this problem. But, I can't get the answer for now, so I report the problem here.

My company bought the license key for setting up our company logo instead of Bizagi logo.

But, when I reset my computer and download the newest version of Bizagi, the modeler asked me to upgrade plan instead entering license activation key.

Here is how to set up the logo: File - options - documentation - general settings - logo (configure logo used for documentation)

Please, help me. Thanks.