Hi @wangzf I'm not sure why you're getting this message, your collateral looks like it is defined properly in the protx:
"proRegTx": {
"version": 1,
"collateralHash": "aae9dbf7c4618b3d70cff38280f129d72ef0d1302e5045fdcb584a94ed2183a3",
"collateralIndex": 1,
"service"...