Well your question is a bit incorrect.
You can't delete your objects, and you can't save your map?
So how did you managed to save that map meanwhile all of those objects are still in there?
For this, I should remove all units (click on them and press delete).
Altough, I don't have any experience with the WEU.
lawl?Simple i get it all the time when making a map as i go wild with doodads and destructibles, it simply says there are to much and that you must reduce the amount of doodads down to 8192, and destructibles to 6144, then it should save