(fixed) Entity Exists But i dont Have an Entity Anymore?

so i have made an entity then i deleted it later on and now when i try to make another entity with the same name
it shows me this
 

i dont have a mod element with that name anymore tho.
it also shows me the entity exists when i run the test environment i can spawn the entity too but its using the biped model now 

so basically im asking why is it existing?
and how do i get rid of it?