It's appearing on the screen mostly at the start of the project, as I have used a msg dialog as of now for errors. After clicking "ok" to this msg the automation continues the process. I tried suppressing it to from Runtime config file too.
It is likely an adapter exception and benign. You might try suppressing adapter exceptions in the RuntimeConfig, but if that doesn't work or is not desirable, I would suggest opening a support request. Please report the SR number here if you do open one.