Why user need VN own permission for VM create

I am try to create a VM by using one.template.instantiate API. but that arise
"Error! [TemplateInstantiate] Error allocating a new virtual machine template. User 47 does not own a network with name: VN_113_119 . Set NETWORK_UNAME or NETWORK_UID of owner in NIC." Error message

But the in opennebula sunstone the same user can create VM by using the same template. how to fix this issue