The created brep isnt closed

Hi, I’ve create a brep and tried to closed it.
But I dont know why it is just still open.
Here is the photo:
image
image

TEST_CLOSED_Brep_V1.3dm (152.8 KB)
TEST_CLOSED_Brep_V1.gh (84.8 KB)

You are using a cracked / pirated version of Rhino (there is no legitimate “Corporate” version).

-Kevin