DeadAccount

The beneficiary account does not exist and this operation is not allowed to create it. Check System.Account for the destination: it must already hold at least the existential deposit before the operation runs.

Declared by the Balances pallet; it classifies to the semantic code not_found.

Remediation

The referenced object is not on-chain; check the identifier

The same explanation is available in the terminal: btcli explain DeadAccount.