# Error OKX "51138 — The lowest price limit for the sell leg..."

On the OKX exchange, there is a **Price Limits** mechanism, which sets the minimum and maximum allowable prices for trades. These limits are calculated based on the market index and special formulas that take into account volatility and price dynamics. The purpose of this mechanism is to prevent sharp price fluctuations and protect market participants from manipulations.

**What this means in your case:**\
The bot sent a sell order at a price that turned out to be below the permissible limit set by the exchange. As a result, OKX returned error **51138**. This restriction is imposed solely by OKX rules and is not related to the bot’s functionality.

**Possible solutions:**

* Sell the asset manually on the exchange and then restart the strategy.
* Delete the strategy and recreate it using the "[*Import Asset*](/en/quick-start/2.9-asset-import.md)*"* function.
* Consider running the strategy on another supported exchange where such restrictions do not apply.

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