Prometheus node explorer

hello everyone, i restart the system, my node explorer failed all the time, this is log, if some body can help
● node_exporter.service - Node Exporter
Loaded: loaded (/etc/systemd/system/node_exporter.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Sat 2021-07-31 17:42:00 CDT; 1min 20s ago
Process: 4979 ExecStart=/usr/local/bin/node_exporter (code=exited, status=1/FAILURE)
Main PID: 4979 (code=exited, status=1/FAILURE)

Jul 31 17:42:00 Eth node_exporter[4979]: level=info ts=2021-07-31T22:42:00.642Z caller=node_exporter.go:1>
Jul 31 17:42:00 Eth node_exporter[4979]: level=info ts=2021-07-31T22:42:00.642Z caller=node_exporter.go:1>
Jul 31 17:42:00 Eth node_exporter[4979]: level=info ts=2021-07-31T22:42:00.642Z caller=node_exporter.go:1>
Jul 31 17:42:00 Eth systemd[1]: node_exporter.service: Failed with result ‘exit-code’.
Jul 31 17:42:00 Eth node_exporter[4979]: level=info ts=2021-07-31T22:42:00.642Z caller=node_exporter.go:1>
Jul 31 17:42:00 Eth node_exporter[4979]: level=info ts=2021-07-31T22:42:00.642Z caller=node_exporter.go:1>
Jul 31 17:42:00 Eth node_exporter[4979]: level=info ts=2021-07-31T22:42:00.642Z caller=node_exporter.go:1>
Jul 31 17:42:00 Eth node_exporter[4979]: level=info ts=2021-07-31T22:42:00.642Z caller=node_exporter.go:1>
Jul 31 17:42:00 Eth node_exporter[4979]: level=info ts=2021-07-31T22:42:00.642Z caller=node_exporter.go:1>
Jul 31 17:42:00 Eth node_exporter[4979]: level=error ts=2021-07-31T22:42:00.642Z caller=node_exporter.go:>

What does the command and config file look like for this?
What version are you using?