blender vertexing help? (old method)

[Ninka_kiwi]

so i tried vertexing with blender and the old method and this happened >.>

all i tried to do was make clouds wrist gaurd into a sleave (im trying to make AC cloud vertex)
so any suggestions on what to do or if anyone knows if i could do this without error in vertex box 2 please tell me.

[Ninka_kiwi]

can someone help with this?