Hi Sudhir,
If your VMAP XML is loading twice, it's likely being requested twice. Can you double-check your implementation against our
samples? We also have live demos of these samples, if you'd like to test. The
Advanced Demo is most useful since you can paste in your own ad tag.
For the error that you're seeing, if playback is unaffected, you don't need to worry too much. Regardless, if you'd like to share you ad tag then I can take a look.
Regards,
Chris Feldman
IMA SDK Team