# ReentranceDenied (/docs/errors/chain/ReentranceDenied)

A call tried to re-enter a contract already on the call stack without reentrancy being allowed, or contract code called back into the contracts pallet through the runtime. Check the callee address against the current call stack and the ALLOW\_REENTRY call flag.

Declared by the `Contracts` pallet; it classifies to the semantic code [`invalid_argument`](/docs/errors/invalid-argument).

## Remediation [#remediation]

Check the argument values against the operation schema

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