Update 2.0 to 2.1, my astro rules no longer work

After an update from openhab 2.0 to 2.1, my astro binding rules no longer work.

After the upgrade I had several problems, most I solved.
But my astro rule that used to work now no longer works.

I searched the forum but did not come up with any solutions.

In the Events.log log I see events related to the astro binding, so i assume that the binding is working.

2017-08-12 11:34:00.003 [ChannelTriggeredEvent     ] - astro:moon:home:set#event triggered END
2017-08-12 11:34:00.004 [ChannelTriggeredEvent     ] - astro:moon:local:set#event triggered END

Openhab.log:

2017-08-12 17:12:37.994 [WARN ] [el.core.internal.ModelRepositoryImpl] - Configuration model 'home1.rules' has errors, therefore ignoring it: [88,5]: no viable alternative at input 'channel'
   
[96,5]: no viable alternative at input 'channel'

Below my Astro rules

rule "Sun rise"
when
    channel 'astro:sun:home:rise#event' triggered START
then
    E0Voordeur_Switch.sendCommand(OFF)
    E1Somfy_Shutter.sendCommand(UP)
end

rule "Sun set"
when
    channel 'astro:sun:home:set#event' triggered START
then
    E0Voordeur_Switch.sendCommand(ON)
    E1Somfy_Shutter.sendCommand(DOWN)
end

any help is welcome

Think it should probably be capitalized?

when
    Channel ...

Thanks for your reply.
Iā€™d tried that once.

What I notice is, that if I use a capital letter C the error in openhap.log is gone but the Eclipse Designer still disapproved it.
But he, it looks like the rule file is loading correctly.

But now I see the line below in openhab.log

2017-08-12 21:22:10.746 [ERROR] [ui.internal.items.ItemUIRegistryImpl] - Cannot retrieve item 'sunrise_Time' for widget org.eclipse.smarthome.model.sitemap.Text

Yay, progress!

So now you need to check your items fileā€¦

Again a lowercase letter where it should be a capital letter

Thx Namraccr