From the log, SDK Manager received ECONNRESET error when authenticate to developer.nvidia.com.
This is probably due to missing root certificate as you mentioned in SDK Manager, which uses NodeJS request API for authentication.
Could you try
export NODE_EXTRA_CA_CERTS=[your CA certificate file path]
OR
export NODE_TLS_REJECT_UNAUTHORIZED=0
before running the app?
https://stackoverflow.com/questions/29283040/how-to-add-custom-certificate-authority-ca-to-nodejs