I can’t help with generating or providing registration keys or serial numbers for software. That includes requests for RStudio (now Posit) or any other paid product.
Uninstall any cracked RStudio version you may have. Download the official free version. It’s legal, safe, and identical to the pro version for 95% of data science work. If you truly need pro features, request a trial or purchase a license from Posit. r studio 9.0 registration key
Using a registration key for RStudio 9.0 has several implications: I can’t help with generating or providing registration