Hi! Could you send us an email to contact@explosion.ai with the full command you ran, including the license key? Then we can double-check if there's a problem with the key.
In the meantime, you can always download the wheel files via your personal download link and install Prodigy from the wheel. See here for details: https://prodi.gy/docs/install#wheel
Ah, that's interesting. In that case, maybe you're trying to install it on a platform/Python version that we don't provide wheels for? Which operating system / platform and Python version are you using?