Update to the latest Nsight Systems and retry (2021.1 currently)
Run Nsight Systems as Administrator and retry.
I suggest #2 as I hit a problem a few months back on Win10 where on older version of Nsight Systems would crash after profiling collection (with boost APIs on the stack) unless run as an elevated user. That’s been fixed in more recent versions, but you’re running an older version. See this link for details: