ok it failed and i see this
● proxmox-backup-proxy.service - Proxmox Backup API Proxy Server
Loaded: loaded (/lib/systemd/system/proxmox-backup-proxy.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Tue 2021-01-05 10:57:54 EST; 25s ago
Process: 6379 ExecStart=/usr/lib/x86_64-linux-gnu/proxmox-backup/proxmox-backup-proxy (code=exited, status=101)
Main PID: 6379 (code=exited, status=101)
Jan 05 10:57:54 backups systemd[1]: proxmox-backup-proxy.service: Service RestartSec=100ms expired, scheduling restart.
Jan 05 10:57:54 backups systemd[1]: proxmox-backup-proxy.service: Scheduled restart job, restart counter is at 5.
Jan 05 10:57:54 backups systemd[1]: Stopped Proxmox Backup API Proxy Server.
Jan 05 10:57:54 backups systemd[1]: proxmox-backup-proxy.service: Start request repeated too quickly.
Jan 05 10:57:54 backups systemd[1]: proxmox-backup-proxy.service: Failed with result 'exit-code'.
Jan 05 10:57:54 backups systemd[1]: Failed to start Proxmox Backup API Proxy Server.