I did an
systemctl status pvedaemon.service
pvedaemon.service - PVE API Daemon
Loaded: loaded (/lib/systemd/system/pvedaemon.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2021-10-11 18:17:01 CEST; 3 weeks 1 days ago
Process: 3411089 ExecReload=/usr/bin/pvedaemon restart (code=exited, status=255/EXCEPTION)
Main PID: 1797 (pvedaemon)
Tasks: 8 (limit: 77150)
Memory: 422.3M
CPU: 25min 1.922s
CGroup: /system.slice/pvedaemon.service
├─ 1797 pvedaemon
├─2756277 pvedaemon worker
├─3349714 pvedaemon worker
├─3359047 pvedaemon worker
├─3372895 task UPID

ve:0033775F:0BBCB203:61826EE7:vncshell::root@pam:
├─3372896 /usr/bin/termproxy 5900 --path /nodes/pve --perm Sys.Console -- /usr/bin/pveupgrade --shell
├─3372900 /usr/bin/perl /usr/bin/pveupgrade --shell
└─3373021 /bin/bash -l
Nov 03 13:24:40 pve systemd[1]: Reloading PVE API Daemon.
Nov 03 13:24:46 pve pvedaemon[3410564]: start failed - can't acquire lock '/var/run/pvedaemon.pid.lock' - Resource temporarily unavailable
Nov 03 13:24:46 pve pvedaemon[3410564]: start failed - can't acquire lock '/var/run/pvedaemon.pid.lock' - Resource temporarily unavailable
Nov 03 13:24:46 pve systemd[1]: pvedaemon.service: Control process exited, code=exited, status=255/EXCEPTION
Nov 03 13:24:46 pve systemd[1]: Reload failed for PVE API Daemon.
Nov 03 13:25:20 pve systemd[1]: Reloading PVE API Daemon.
Nov 03 13:25:26 pve pvedaemon[3411089]: start failed - can't acquire lock '/var/run/pvedaemon.pid.lock' - Resource temporarily unavailable
Nov 03 13:25:26 pve pvedaemon[3411089]: start failed - can't acquire lock '/var/run/pvedaemon.pid.lock' - Resource temporarily unavailable
Nov 03 13:25:26 pve systemd[1]: pvedaemon.service: Control process exited, code=exited, status=255/EXCEPTION
Nov 03 13:25:26 pve systemd[1]: Reload failed for PVE API Daemon.