> ## Documentation Index
> Fetch the complete documentation index at: https://docs.swap.coffee/llms.txt
> Use this file to discover all available pages before exploring further.

# Error Codes

This page contains extensive information about all exit codes with which execution of **DEX** contracts may end up with.

Additionally to [standard exit codes](https://docs.ton.org/v3/documentation/tvm/tvm-exit-codes), our contracts feature some new ones:

| Error Code | Name                      | Description                                                                                                                                                                       |
| ---------- | ------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 6          | Unknown opcode (Standard) | Contract received internal message with unknown opcode or contract received jetton transfer notification with custom payload, which contains unknown opcode                       |
| 40         | Not Enough Gas (Standard) | There is not enogh gas to perform (or continue) contract execution                                                                                                                |
| 250        | Unexpected                | Some unexpected error occurred. Please, contact **swap.coffee** administration if you face this issue                                                                             |
| 251        | Invalid Request           | Internal error that signifies about inter-contract communication going wrong                                                                                                      |
| 252        | Wrong Sender              | Indicates that internal message have been sent by inappropriate contract. Usually met when somebody tries to "hack" **DEX** contracts                                             |
| 253        | Not a Factory             | Indicates that internal message was expected to be sent by the factory, but it's sender differs. Usually met when somebody tries to "hack" **DEX** contracts                      |
| 254        | Not an Admin              | Indicates that internal message was expected to be sent by the administrative wallet, but it's sender differs. Usually met when somebody tries to "hack" **DEX** contracts        |
| 255        | Wrong Chain               | Thrown when address other than from basechain (id = 0) was received as an argument in some query                                                                                  |
| 256        | Wrong Assets              | Thrown on a swap if pool doesn't correlate with given assets or if it is unable to determine which asset is input and which is output                                             |
| 257        | Same Assets               | Thrown when user tries to swap/deposit liquidity/create pool for a pair of very same assets                                                                                       |
| 258        | Wrong Signature           | Thrown at a proof validation stage if proof's signature is not valid. Usually met when somebody tries to "hack" **DEX** contracts                                                 |
| 259        | Invalid Balance           | Indicates that message wasn't provided with enough currency                                                                                                                       |
| 260        | Invalid Jetton Master     | Thrown on **Jetton Vault** if activation failed due to **Jetton Master** unexpected response                                                                                      |
| 261        | Unknown AMM               | Thrown when user tries to create pool of unknown AMM                                                                                                                              |
| 262        | AMM Failed                | Internal error that signifies about AMM strategy logic going wrong. Please, contact **swap.coffee** administration if you face this issue                                         |
| 263        | Invalid AMM Settings      | Internal error that signifies about wrong pool setup. Please, contact **swap.coffee** administration if you face this issue                                                       |
| 264        | Invalid Liquidity         | Thrown if user tried to deposit less liquidity than minimum allowed or in case of zero-amount of one of the assets on liquidity deposition stage                                  |
| 265        | Invalid Fees              | Thrown when **DEX** administrator tried to set invalid fees for the pool or tried to withdraw too much of collected protocol fees                                                 |
| 266        | Invalid Condition         | Indicates that liquidity deposition condition is of inappropriate format or contains invalid data                                                                                 |
| 267        | Invalid Asset Type        | Indicates that internal message's body was built wrong and asset in it couldn't be deserialized                                                                                   |
| 268        | Deadline Exceeded         | Indicates that deadline (the one that's being specified in request body) for swap or liquidity deposition exceeded by the time contract received and tried to handle that message |
| 269        | Slippage Tolerated        | Indicates that request couldn't be executed, because slippage limitation (the one that's being specified in request body) had been triggered                                      |
| 270        | Pool Already Exists       | Thrown on pool creation request handling if pool already exists                                                                                                                   |
| 271        | Reserves Ratio Failed     | Indicates that liquidity deposition reserves ratio condition (the one that's being specified in the deposit request body) check failed                                            |
| 272        | Already Active            | Internal error that is being thrown whenever contracts or **DEX** administrator try to activate vault or pool, but it's already active                                            |
| 273        | Not Active                | Thrown whenever user tries to swap/create pool/deposit liquidity throughout inactive vault or pool                                                                                |