The "invalid address" error occurs when the address you try to send to does not match the network of your wallet. For example if you are using a Testnet wallet and try to send to a Bitcoin wallet, or if you try to send to a different blockchain.
Address Prefixes
In order to resolve this error, make sure you are entering an address that matches the network of your wallet.
- Bitcoin wallets can send to addresses with the prefix 1, 3, or bc1.
- Testnet wallets can send to addresses with the prefix m, 2, or tb1.