resilio-sync.service - Resilio Sync service
Loaded: loaded (/lib/systemd/system/resilio-sync.service; enabled; vendor preset: enabled)
Active: active (running) since Sat 2018-05-26 15:22:38 UTC; 54s ago
Docs: https://help.getsync.com/
Process: 28956 ExecStart=/usr/bin/rslsync --config /etc/resilio-sync/config.json (code=exited, status=0/SUCCESS)
Process: 28950 ExecStartPre=/bin/chown -R rslsync:rslsync /var/run/resilio-sync (code=exited, status=0/SUCCESS)
Process: 28943 ExecStartPre=/bin/mkdir -p /var/run/resilio-sync (code=exited, status=0/SUCCESS)
Main PID: 28958 (rslsync)
Tasks: 11
Memory: 3.2M
CPU: 101ms
CGroup: /system.slice/resilio-sync.service
└─28958 /usr/bin/rslsync --config /etc/resilio-sync/config.json
May 26 15:22:38 vultr.guest systemd[1]: Starting Resilio Sync service...
May 26 15:22:38 vultr.guest systemd[1]: resilio-sync.service: Failed to read PID from file /var/run/resilio-sync/sync.pid: Invalid argument
May 26 15:22:38 vultr.guest systemd[1]: Started Resilio Sync service.
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i do not know how to fix it , by the way i am a new fish . please do me a favor.