Change from `https://mainnet.infura.io/[YOUR_KEY]` to `https://mainnet.infura.io/v3/[PROJECT_ID]` More info on [Infura docs](https://infura.io/docs/gettingStarted/authentication) Test deployment.
Change from
https://mainnet.infura.io/[YOUR_KEY]to
https://mainnet.infura.io/v3/[PROJECT_ID]More info on Infura docs
Test deployment.