missing token metadata

Question

I believe with this operation ooDavbDYs9SkBR4JoaUxTBysvEnd7y1gP1ZDGddQgfQZaURpdjx I have created a token. This is the entry point I called

@sp.entry_point
    def mintDiezDAO(self, params):
        sp.verify(sp.sender == self.data.administrator)
        sp.set_type(params, sp.TList(sp.TRecord(to_=sp.TAddress, amount=sp.TNat)))
        sp.for e in params:
            user = self.ledger_key.make(e.to_, 0)
            sp.if self.data.ledger.contains(user):
                self.data.ledger[user].balance += e.amount
            sp.else:
                self.data.ledger[user] = Ledger_value.make(e.amount)
            sp.if self.data.token_metadata.contains(0):
                pass
            sp.else:
                self.data.token_metadata[0] = sp.record(
                    token_id=0,
                    token_info={"": sp.pack("ipfs://QmXvuWe3oA8vbJ2g5ERKiECfkCPgYxuC2ZyK9QomtaCiKy")}
                    )

But in the wallet, the icon and the unit are not displayed.

Do I need to call the Token_metadata first? But then, what do I need to pass as Handler?

Any help really appreciated,