PVR IPTV Simple Client Comand Line start/stop

[dvv06]

Hello Frends!
Sorry for my English (this is not my native language).
I have:
1.Raspberry Pi 3B + (XBian 18.1)
2. AceStream Madia + PVR IPTV Simple Client
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The problem is this:
When XBian loads, it loads the PVR IPTV Simple Client earlier than AceStream Madia and a situation arises that the playlist in the PVR IPTV Simple Client is empty.
I had an idea:
1. either manually restart the PVR IPTV Simple Client from the command line after AceStream Madia (then the channels will be loaded)
2. Either delay the start of the PVR IPTV Simple Client
but in what file to set a delay I do not know. And I don’t know the command to launch PVR IPTV Simple Client from the command line.
If anyone knows, please tell me.