> For the complete documentation index, see [llms.txt](https://cetus-1.gitbook.io/cetus-developer-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cetus-1.gitbook.io/cetus-developer-docs/developer/via-sdk-v2/sdk-modules/cetusprotocol-xcetus-sdk/contract-error-codes.md).

# Contract Error Codes

the Cetus smart contract may return the following error codes:

<table><thead><tr><th width="105.1910400390625">Module</th><th width="95.2880859375">Error Code</th><th width="268.240234375">Description</th><th>Contract Methods</th></tr></thead><tbody><tr><td>lock_coin</td><td>0</td><td>The lock time must be greater than the current time</td><td>lock_coin</td></tr><tr><td>lock_coin</td><td>1</td><td>The lock period has not ended</td><td>unlock_coin</td></tr><tr><td>locking</td><td>1</td><td>Insufficient XCetus balance</td><td>redeem_lock</td></tr><tr><td>locking</td><td>2</td><td>Locking period for XCetus is out of allowed range</td><td>redeem_lock</td></tr><tr><td>locking</td><td>3</td><td>Invalid redeemable XCetus amount</td><td>redeem_lock</td></tr><tr><td>locking</td><td>4</td><td>veNFT does not match the associated LockedCoin</td><td><p>cancel_redeem_lock, </p><p>redeem</p></td></tr><tr><td>locking</td><td>5</td><td>LockCoin has expired; locking has ended</td><td>cancel_redeem_lock</td></tr><tr><td>locking</td><td>7</td><td>Unauthorized treasury manager</td><td>redeem_treasury</td></tr><tr><td>locking</td><td>8</td><td>The version of the contract has been deprecated</td><td>The vast majority of methods</td></tr><tr><td>xcetus</td><td>1</td><td>XCetus balance is not zero</td><td>burn_venft</td></tr><tr><td>xcetus</td><td>5</td><td>The address already has a VeNFT</td><td>burn_lp</td></tr><tr><td>xcetus</td><td>6</td><td>XCetus in unlocking process is not zero</td><td>request_transfer_venft_by_admin, approve_transfer_venft, mint_venft</td></tr><tr><td>xcetus</td><td>7</td><td>VeNFT does not exist</td><td>approve_transfer_venft</td></tr><tr><td>xcetus</td><td>8</td><td>Transfer request already exists</td><td>request_transfer_venft_by_admin</td></tr><tr><td>xcetus</td><td>9</td><td>Transfer request does not exist</td><td>approve_transfer_venft, cancel_transfer_venft_request_by_admin</td></tr><tr><td>xcetus</td><td>10</td><td>TransferVeNFTRequest does not match the VeNFT</td><td>approve_transfer_venft</td></tr><tr><td>xcetus</td><td>11</td><td>The destination address is inconsistent with the one in TransferVeNFTRequest</td><td>approve_transfer_venft</td></tr></tbody></table>