Express document "Update was terminated"

Hi,

I am creating a Condition record using the transaction VK11 and when saving a message "Condition record saved" is coming. When i am exiting VK11 or when i am going to VK13 to display the condition record the following message is coming in a popup.

"Express document "Update was terminated" received from author <SY-UNAME>" is coming.

In the popup a button is there "Inbox".

If i am going inside the inbox following log is displayed

System ID: Quality

client: 100

User: SY-UNAME

Transaction: VK11

Update key: some alpha numaric number

Error info: 00 671: ABAP/4 processor DBIF_RSQL_SQL_ERROR

Kindly provide some valuble inputs.

Thanks,

sengodan.