Hi @futureyoon , it is a redirect error on our side during activation via WP-CLI that we have fixed for the next release. The update should be out in the next few days (no later than Monday), but as there are several changes involved in this fix, maybe you could reach out via our website if you need the updates urgently, as we’ll need to provide some instructions about making the fixes yourself in advance of the release.
The 4.2 update was released last week and it should correct this for you. If you are seeing any remaining issues, please let us know.