# LeaseCannotEndInThePast (/docs/errors/chain/LeaseCannotEndInThePast)

The `end_block` supplied when registering a leased network is not after the current block. Check the current chain height and pass an `end_block` in the future, or omit it for a perpetual lease.

Declared by the `SubtensorModule` 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 LeaseCannotEndInThePast`.