Q: Why I'm getting this error message when I'm approving from Mission Control, Deleting products, etc...

A: The orange error message is coming from Amazon.  Amazon puts a quota on a number of items uploaded per hour.  The request is throttled.  Whenever you see an orange error message it pertains to Amazon blocking the operation for some reason, in this case, the quota was reached. What we suggest is to do actions in bulk. For example, deleting products in bulk instead of doing it one by one or approving items in your Mission Control by batch instead of per item. Thank you.