Google earth export error for offset tracking velocity

I am testing the offset tracking method for landslide analysis. However, I am not able to do the Google earth export KMZ. I ama getting the following error.
Can anyone please help me to do the KMZ export for the velocity?

Thank you!

is your image already terrain corrected?

If this happens you see also a red sign at the lower right corner, I guess. Could you click on this and show what is written there.
If not, please look for the log file.
In the menu, go to Help / Show Log Directory and then attache the messages.log file here. Ensure to force the error before looking at the log file.