I was seeing crashes using the latest Paddle framework, so I downgraded in the 1.7.2 release, I think maybe that’s causing this. Anyway I think you can fix by:
Go to Bike’s Preferences > License and then:
Copy your existing license key
Deactivate your license
Paste in that saved license key and Activate your license
That worked once in the past when this issue came up, please let me know how it goes this time.