When I use the function calling feature gpt responds with "I am not available right now" but works otherwise

Hello, every time I try to send a query that utilizes the function calling feature gpt immediately responds with something like “I am not available right now. Please try again later.” But, if I send a query without the function calling feature, it works. I have tried gpt-4-1106-preview and gpt-4-turbo-preview. What am I doing wrong?

This is the class I use to make chat requests:
public class ChatCompletionRequest {

public String model;

public List<ChatMessageWithContent> messages;

public Double temperature;

public Double top_p;

public Integer n;

public Boolean stream;

public List<String> stop;

public Integer max_tokens;

public Double presence_penalty;

public Double frequency_penalty;

public Map<String, Integer> logit_bias;

public String user;

public List<ToolsForFunctionCalling> tools;

This is the class for ToolsForFunctionCalling:
public class ToolsForFunctionCalling {

public String type;
public Function function;

This is the Function class:
public class Function{
public String description;
public String name;
public String parameters;
This is the query I send:
ChatCompletionRequest completionRequest = new ChatCompletionRequest();
// olf function calling model → gpt-4-1106-preview; other → gpt-4-turbo-preview
completionRequest.model = “gpt-4-1106-preview”;
completionRequest.messages = this._session_messages;
completionRequest.n = 1;
completionRequest.temperature = 0.2;
completionRequest.max_tokens = 1000;

    Function takeOutGarbage = new Function();
    takeOutGarbage.name = "takeOutGarbage";
    takeOutGarbage.description = "Takes out the garbage";
    takeOutGarbage.parameters = "null";

    ToolsForFunctionCalling takeOutGarbage_ = new ToolsForFunctionCalling();
    takeOutGarbage_.type = "function";
    takeOutGarbage_.function = takeOutGarbage;

    List<ToolsForFunctionCalling> tools_ = new ArrayList<>();
    completionRequest.tools = tools_;

Then I turn this object into json format using:
ObjectMapper objectMapper = new ObjectMapper();
String jsonString = objectMapper.writeValueAsString(completionRequest);

Then I send my query but it fails. However, if I comment out all the code that has to do with adding to the tools list, it works. Any help would be appreciated.

I suspect that the function was invoked, but perhaps there was nothing to handle it so the tool output handler gave a generic { status: "error", message: "Not available right now" } .

Can you explain what you mean by there was nothing to handle it?

I am also using function calling in my API calls and now just getting ‘None’ as a response. It was working ~30 minutes ago, and like you if I do not use function calling it seems to return with reasonable output. Model: gpt-4-1106-preview

UPDATE: this works with gpt-4 , but seems that function calling still failing with gpt-4-1106-preview. Anyone know what’s going on here?