Answer to myself
I removed /etc/init.d/urbackupsrv file and create /etc/systemd/system/urbackup-server.service
[Unit]
Description=UrBackup Client/Server Network Backup System
After=syslog.target network.target
[Service]
ExecStart=/usr/bin/urbackupsrv run --config /etc/default/urbackupsrv --no-consoletime
User=root
TasksMax=infinity
Restart=on-failure
RestartSec=5s
[Install]
WantedBy=multi-user.target