SI Instruments now requiring registration - unable to register

[Dan Frame]

I came back to using Cakewalk after a brief break and now my SI instruments no longer work and instead give me a pop-up asking for registration. The link to register goes to the defunct old Cakewalk site. I've also confirmed that the SI instruments are checked as an available add-on within the Bandlab Assistant. 

I'm not sure what to do in order to regain access to these instruments. 

[Promidi]

What happens if you reinstall via the Cakewalk installer?

https://www.bandlab.com/#download

[Patrick Wichrowski]

Try install and run as administrator.