In the recent macOS 15.2 update, Apple made changes to the purchase modal, which inadvertently introduced a bug in Type. This issue is preventing users from starting the free trial or unlocking the app.
I’m actively working to resolve the problem with support from an Apple engineer.
In the meantime, please follow these steps to unlock Type:
Note: Please remember to reactivate the 'Install Security and System Files' toggle once you have unlocked Type.