You're trying to connect to RStudio Server Pro. Contact your IT administrator – they manage keys server-side.
You can copy the provided URL and access it from a computer with internet, or scan the with a smartphone to receive your final activation code R-Studio: Data Recovery Key Features of R-Studio 9 rstudio 9 registration key
What license is the RStudio IDE available under? - Posit Support You're trying to connect to RStudio Server Pro