# Reentrancy (/docs/errors/chain/Reentrancy)

EVM execution re-entered the pallet while another EVM execution was already in progress on the same thread, e.g. a precompile or runtime call dispatching back into the EVM. Inspect precompiles and runtime code that invoke the EVM from within an EVM call.

Declared by the `EVM` pallet; it classifies to the semantic code [`internal`](/docs/errors/internal).

## Remediation [#remediation]

A chain-side invariant failed; nothing to fix client-side — report it if it persists

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