Rinkeby switched over to Byzantium on block number 1035301.
In order to ensure you are on the upgraded chain, please make sure:
- You are running Geth 1.7.1-stable or later.
- You have the
--rinkebyflag specified.
Note: if you do not run your node via --rinkeby, rather as a private network peer initialized using a custom genesis json from the https://www.rinkeby.io dashboard, you'll either need to change your node startup to include --rinkeby, or you'll need to download the rinekby.json file from the dashbaord containing the updated chain configs with the Byzantium block number and redo geth --datadir=your-data-directory init rinkeby.json.