In this Roblox Error Code 529 guide, we'll talk you through what the error means and how you can try and fix it on your end.

To fix An error occurred while starting Roblox Studio, Studio details failed to create key or deploy, Reset your Router, Reset TCP-IP, Disable proxy settings, etc.

If KRNL-Injector failed to find the Roblox process, delete KRNL App data and see. If that doesn't help follow the solutions mentioned in this post to resolve the issue.