Can't erase ?

 From:  Frenchy Pilou (PILOU)
9457.1 
Hello
I can't erase these 2 green objects!
Seems they are some objects in the same place but curious that they can't be erased in only one pass ?
Elephant is closed...

http://moiscript.weebly.com/uploads/3/9/3/8/3938813/cant_erase.3dm