Looks like it may be an issue described here:
Can you check if PI SDK buffering is enabled in PI SDK Utility? Go to PI SDK Utility>Buffering>PI SDK Buffering Configuration.
Let's make sure the check box is unchecked. If it were checked, then piputval was probably trying to write to the buffer, but since it was stopped, the error appeared.
Have you find a solution for this issue? If so, would you mind sharing your solution? If not, please give us more details so we can further assist you.
It would be useful to tell us what you have done to solve this issue.
I will mark this answer as assumed answered for now.
You can come back in this discussion at any time if you need more information.