Create My Deamon Systemd with autostart/autorestart

[dvv06]

Hello to all!
And I have:
1. RPi3B +
2. Xbian 18.1
3 AceStream Media pakage (installed and successfully working if you run the startup script manually)
/home/xbian/acestream.engine/acestream.start
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Necessary:
Run on startup Xbian (preferably restart on crash)
What did you do:
1. Made an acestream.service file with the following contents
[Unit]
Description=AceStream
After=network-online.target

[Service]
Type=simple
User=root
Group=root
ExecStart=/home/xbian/acestream.engine/acestream.start
ExecStop=/home/xbian/acestream.engine/acestream.stop
TimeoutSec=2
# Restart = always

[Install]
WantedBy=multi-user.target
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2. copied it to /lib/systemd/system
3. Executed commands:
systemctl enable acestream - a symbolic link was successfully created in /etc/systemd/system/multi-user.target.wants/acestream.service
but cannot start acestream as a service command:
systemctl start acestream
Output:
Failed to start acestream.service: Unknown unit: acestream.service
See system logs and 'systemctl status acestream.service' for details.

On command:
systemctl -l status acestream
It produces:
Failed to get properties: No such interface ''
--------

At the moment, as a temporary option, added the line to /etc/rc.local
/home/xbian/acestream.engine/acestream.start&
but PVR IPTV Ssimple Client is loaded before the acestream engine and the channel list is not loaded

P.S: Sorry for my English, this is not my native language.