Create new Transaction with wallet by BlockCypher

I have a problem with creating new transaction by wallet.
I created a wallet with 3 addresses, after call API:
Call: https://api.blockcypher.com/v1/btc/test3/wallets/alice/addresses?token=MYTOKEN
Response:
{
"token": "6898c******************",
"name": "alice",
"addresses": [
"mxReqU96ndChteqeoY5oh8fdaP8hBd2xFp",
"n18ktQ4BVQkB5VhL26vxbkXcFYGqo6SgSf",
"mo6dzyjhJKQcD9VjBzbeUWNdckuXzRUXqE"
]
}

When I create a transaction with wallet, I received an Error: "Unable to find wallet alice"
Call: https://api.blockcypher.com/v1/btc/test3/txs/new
This is my parameters:
{
   "inputs": [
      {
         "wallet_name": "alice",
         "wallet_token":"MYTOKEN"
      }
   ],
   "outputs": [
      {
         "addresses": ["2N8hwP1WmJrFF5QWABn38y63uYLhnJYJYTF"],
         "value": 10000000
      }
   ]
}

Please help me with this issues. Thank you so much