BC Sender Adapter

Hello,

i get the following error in Communication Channel Monitoring (for my sender BC adapter):

Message processing failed due to error: com.sap.engine.interfaces.messaging.api.exception.MessagingException: Could not queue send for message 9e7.....(OUTBOUND). Reason: java.lang.NullPointerException

Audit Log:

Delivering the message to the application using connection BcAdapter failed, due to: com.sap.engine.interfaces.messaging.api.exception.MessagingException: Could not queue send for message 9e7.....(OUTBOUND). Reason: java.lang.NullPointerException. Setting message to status failed.

Any ideas?

Regards,

Johannes