I bought Native Instruments MASCHINE MIKRO MK3 Drum Controller on the yard sale and i can't transfer license
Unless you have the details from the old owner you won't be able to transfer the licence yourself. Support might be able to do it for you, if not you can buy the Maschine software separately
You'll need to go through the chatbot on this page to talk to support about account/products - Account Support – Native Instruments (native-instruments.com)
Maschine software-only - Maschine Essentials : Pricing | Maschine (native-instruments.com)