Fail to run N3iwf

i am not able to run n3iwf
my setup free5gc:v3.3.0
ubuntu:22.04

free5gc$ sudo ./bin/n3iwf
[sudo] password for sivanesh:
2023-12-07T18:57:48.084673398+05:30 [INFO][N3IWF][Main] N3IWF version:
free5GC version: v3.3.0
build time: 2023-12-07T13:00:55Z
commit hash: 22988ee2
commit time: 2023-06-07T05:56:10Z
go version: go1.18.10 linux/amd64
2023-12-07T18:57:48.084817278+05:30 [INFO][N3IWF][CFG] Read config from [./config/n3iwfcfg.yaml]
2023-12-07T18:57:48.086600754+05:30 [INFO][N3IWF][Main] Log enable is set to [true]
2023-12-07T18:57:48.086626874+05:30 [INFO][N3IWF][Main] Log level is set to [info]
2023-12-07T18:57:48.086638301+05:30 [INFO][N3IWF][Main] Report Caller is set to [false]
2023-12-07T18:57:48.086649639+05:30 [INFO][N3IWF][Init] Server started
2023-12-07T18:57:48.086795255+05:30 [WARN][N3IWF][CTX] Parse PKCS8 private key failed: x509: failed to parse private key (use ParsePKCS1PrivateKey instead for this key format)
2023-12-07T18:57:48.086807321+05:30 [INFO][N3IWF][CTX] Parse using PKCS1…
2023-12-07T18:57:48.087860815+05:30 [ERRO][N3IWF][CTX] Cannot find interface name
2023-12-07T18:57:48.087880806+05:30 [ERRO][N3IWF][Init] Initicating context failed