If you drill into the Activity Log ID number or download the error file, you will find the following:
Error *The ad failed one or more checks during editorial review.
What Causes The Issue?
This means that the keywords did not pass the Microsoft editorial review when attempting to post to the publisher. If too many errors come through, the entire file can fail out.
How To Fix The Issue
We recommend taking a look at your keywords and adjusting where necessary to pass editorial. If you have questions regarding what changes need to be made to accomplish this, we suggest you reach out to your Microsoft representative for assistance.