We throw this error when a workspace key isn’t specified in the command. You can get the workspace key is in the Advanced settings.
setup.exe /qn NOAPM=1 ADD_OPINSIGHTS_WORKSPACE=1 OPINSIGHTS_WORKSPACE_AZURE_CLOUD_TYPE=0 OPINSIGHTS_WORKSPACE_ID="<your workspace ID>" OPINSIGHTS_WORKSPACE_KEY="<your workspace key>" AcceptEndUserLicenseAgreement=1