The wallet address must be a native Astar address and the smart contract must be verified on Astar EVM or Astar native, not on zKatana which is a testnet.
You should re-read the instructions: Register dApp | Astar Docs
The wallet address must be a native Astar address and the smart contract must be verified on Astar EVM or Astar native, not on zKatana which is a testnet.
You should re-read the instructions: Register dApp | Astar Docs