# Troubleshooting (/platform/ai-backtesting/troubleshooting)



Use this guide if you have trouble accessing Strategy Screener, receiving a response, or comparing its results.

<Note>
  Don't hesitate to send your feedback at [support@luxalgo.com](mailto:support@luxalgo.com) or in our [Discord server](https://discord.com/invite/LUX).
</Note>

## I can't use the Strategy Screener [#i-cant-use-the-strategy-screener]

Sign in at [app.luxalgo.com](https://app.luxalgo.com/screener) and open **Strategy Screener** from the sidebar. It is available on every plan, including Free.

If you cannot send a request, check your remaining credits on the **Plan & Credits** page of your account. Quant and Strategy Screener share one balance. See [Monthly credits](/platform/account/credits) for reset timing and credit packs.

## The AI is not responding to my message [#the-ai-is-not-responding-to-my-message]

To ensure fair and consistent access to the Strategy Screener, users are subject to rate limits defined in terms of concurrent requests.

If the maximum number of concurrent requests is exceeded, messages sent to the Strategy Screener will take longer to get answered.

Waiting for some time will generally resolve the issue.

## Reached maximum monthly usage for the Strategy Screener [#reached-maximum-monthly-usage-for-the-strategy-screener]

Strategy Screener uses the same credits as Quant. Larger requests and longer conversations can consume more credits. Your monthly allowance resets on the first of each month; purchased credits are used after monthly credits. See [Monthly credits](/platform/account/credits).

<Tip>
  Start a new conversation when you move to an unrelated request. Longer conversations include more context with each message and can use more credits.

  You can also use a cheaper model to reduce usage, the cost of a model is indicated by the amount of $ signs present in the model selection.
</Tip>

## I am seeing very different strategy results on Tradingview [#i-am-seeing-very-different-strategy-results-on-tradingview]

We compute strategies using data that might be slightly different on TradingView.

The amount of data you have access to can also affect its ability to reproduce strategies, as strategies are backtested using 20.000 bars.

## Specific models do not work [#specific-models-do-not-work]

Some models can be subject to geo-restriction and as such might not be usable by specific users.

We always include one model that is not subject to this restriction, such as Qwen models.