Process XXX is set on "with error"

Hi SDN,

since a week, I try to fix the following issue with SAP NetWeaver BPM 7.3 (in NWDS):

I have a Microsoft Web Service interface to call operations for reading information about Room Folders from the Exchange Server (over the OLX plugin). Herefor, I have modeled BPM with startpoint, an automated task and endpoint.

In my startpoint, I define the request values static; make my mapping Request <--> Response in my automated task and test it on NWA. The error message is:

Prozess 'OLXPool' gesetzt auf 'Fehlerhaft' (Process 'OLXPool' setted on 'with error)
A technical error during invocation: Could not invoke service reference name 613cb15d-82b4-4602-991f-77f5acf9e831, component name net.xxxxx~xxx~olx~proc~BPMcomponent, application name net.xxxxx/xxx~olx~proc.

Please see my added PNG.

Additionally, I can't start my process in debug mode; error: "An internal error occurred during: "Launching OLXProcess". java.lang.NullPointerExceptiona

". May you have a hint for me.

When I make a test mit simple parameters (self made data context), I can see the response.

Thanks for helps,

Cheers,

Cengiz