Title: Error: Duplicate request detected.
Last modified: December 19, 2025
---
# Error: Duplicate request detected.
* Resolved [limest](https://wordpress.org/support/users/limest/)
* (@limest)
* [3 months, 3 weeks ago](https://wordpress.org/support/topic/error-duplicate-request-detected/)
* When I write “Hi” (once) I receive “Error”
Test email log:New Chatbot Conversations
Digest[2025-12-18 18:32:20] Visitor: Hi (it’s mine)[2025-12-18 18:35:21] Visitor:
Hi (I don’t know what is it)[2025-12-18 18:35:21] Chatbot: Error: Duplicate request
detected. Please try again.
And when I try to clear – “Oops! Unable to
clear conversation. Please try again.”
Viewing 9 replies - 1 through 9 (of 9 total)
* Plugin Author [kognetiks](https://wordpress.org/support/users/kognetiks/)
* (@kognetiks)
* [3 months, 3 weeks ago](https://wordpress.org/support/topic/error-duplicate-request-detected/#post-18762731)
* Hello limest (@limest),
* Here is a description of what I think is happening:
1. Duplicate Request Error: When sending a message (e.g., “Hi”), the chatbot returns“
Error: Duplicate request detected. Please try again.” even though it’s the first
message.
2. Clear Conversation Failure: When attempting to clear the conversation, you receive“
Oops! Unable to clear conversation. Please try again.”
* I’m belive the issues is caused by:
1. Stale Duplicate Detection Transients: The plugin uses message UUID transients
to prevent duplicate requests. These transients were set with a 5-minute expiration
but were not being cleared when users cleared their conversations. This caused
legitimate new messages to be flagged as duplicates.
2. Overly Strict Session Validation: The session ownership verification function
was too restrictive, rejecting valid session IDs that didn’t match the exact
expected format, preventing conversation clearing for some users.
3. Missing Transient Cleanup: When clearing conversations, the duplicate message
UUID transients were not being purged, leaving stale data that interfered with
new messages.
* I have a fix that includes three key improvements:
1. Added Transient Cleanup: When a conversation is cleared, all duplicate message
UUID transients are now properly cleared to prevent false positive duplicate
detection.
2. Improved Session Validation: Made the session ownership verification more flexible
to accept valid session IDs while maintaining security.
3. Reduced Timeout Duration: Reduced the duplicate detection timeout from 5 minutes
to 2 minutes to minimize the window for false positives.
* To implement this fix, I’ve made several mofications to chatbot:
1. Added transient cleanup and improved session handling
2. Reduced duplicate detection timeout from 300 to 120 seconds
* Below is a link to a quick fix to the plugin.
1. Backup your WordPress installation before proceeding.
2. Download the patched plugin here: [https://kognetiks.com/wp-content/uploads/2025/12/chatbot-chatgpt.zip](https://kognetiks.com/wp-content/uploads/2025/12/chatbot-chatgpt.zip)
3. Upload and replace the existing plugin on your site.
4. Activate the plugin.
5. Go to the Chatbot Settings, click the Messages tab and confirm you’re running
Version 2.4.0 (this fix).
6. Clear cache(s) in WordPress and on your Server.
7. Test again.
* Let me know if this resolves your issue. Once confirmed, I’ll make an official
release.
* Best,
* Stephen
* Thread Starter [limest](https://wordpress.org/support/users/limest/)
* (@limest)
* [3 months, 2 weeks ago](https://wordpress.org/support/topic/error-duplicate-request-detected/#post-18763279)
* ```wp-block-code
Hi, Stephen and thank you.Unfortunately, it didn't help.When sending a message (e.g., “test”), the chatbot returns “error”.I did as you recommended. I've cleared and disabled LiteSpeedCache plugin, cleared Cloudflare cache.This is my system:Chatbot Version: 2.4.0PHP Version: 8.3.25PHP Memory Limit: 1024MWordPress Version: 6.9API STATUS: Success: Connection to the OpenAI API was successful!I haven't been monitoring the use of the plugin for several months, so I can't even say when exactly the problem appeared.These logs may be helpful:[Chatbot] [ERROR] [2025-12-20 17:24:23] [Session ID: N/A] [User ID: 1] [IP Address: xxxxxx] [Error:] [][Chatbot] [ERROR] [2025-12-20 17:24:59] [Session ID: N/A] [User ID: 1] [IP Address: xxxxxx] [Error:] [][2025-12-20 17:30:53] [Chatbot] [Advanced Reset] Cache and locks reset by admin user ID: 1 - Cleared 55 entriesTest email from the Chatbot Conversation Digest system (my message appears 2-3 times, even though I only sent it once):[2025-12-20 19:14:20] Visitor: hi[2025-12-20 19:17:09] Visitor: hi[2025-12-20 19:17:11] Chatbot: The system is busy processing requests. Please try again later.[2025-12-20 19:55:51] Visitor: test[2025-12-20 19:58:53] Visitor: test[2025-12-20 20:01:54] Visitor: testI found out that the OpenAI platform logs contained the following inputs:System: You are a test function for Chat.User: Write a one sentence response to this test message.Instead of my messages. And as I see it, these are some kind of test inputs for the chatbot, not my “hi” messages to the assistant.
```
* Plugin Author [kognetiks](https://wordpress.org/support/users/kognetiks/)
* (@kognetiks)
* [3 months, 2 weeks ago](https://wordpress.org/support/topic/error-duplicate-request-detected/#post-18763315)
* Hello [limest](https://wordpress.org/support/users/limest/) (@limest),
I made
a few changes to the error logging to see if we can catch what might be going
on.
* [https://kognetiks.com/wp-content/uploads/2025/12/chatbot-chatgpt.zip](https://kognetiks.com/wp-content/uploads/2025/12/chatbot-chatgpt.zip)
As before, download this zip file and replace the chatbot with this version (
it will still show 2.4.0 as the version).Then clear caches (server, wordpress,
etc.).Once we can catch the actual error we may be in a position to figure out
what is going on.
* The message …
* ```wp-block-code
You are a test function for Chat.API STATUS: Success: Connection to the OpenAI API was successful!
```
* … is being sent when you access the chatbot settings and click on the Messages
tab and you get the “Success” response.
* So, we know that you’re able to reach the OpenAI platform via the API.
* Can you check again? Let me know what you find.
* If there anything in the debug.log file that would be helpful.
* Best,
Stephen
* Thread Starter [limest](https://wordpress.org/support/users/limest/)
* (@limest)
* [3 months, 2 weeks ago](https://wordpress.org/support/topic/error-duplicate-request-detected/#post-18763332)
* Thank you.
I installed the new version and checked it.
* My debug.log:
[Chatbot] [chatbot-analytics.php] Translation file not found for
uk. Falling back to: /www/wp-content/plugins/chatbot-chatgpt/includes/analytics//
languages/en_US.phpPHP Warning: Cannot modify header information – headers already
sent in /www/wp-content/plugins/chatbot-chatgpt/chatbot-chatgpt.php on line 58The
chatbot error log only shows:[Chatbot] **[ERROR]** [2025-12-20 19:31:15] [Session
ID: N/A] [User ID: 1] [IP Address: xxxxxx] [**Error**:] []I just discovered one
nuance – it occurs when I use the assistant shortcode [chatbot-2] instead of
the shortcode [chatbot]. The shortcode appears only once on the page. If I use
the universal shortcode [chatbot], I get both the logs on the OpenAI platform
and the bot’s responses. But not my assistant’s. But I have a shortcode configured
in the GPT Assistants section. I’m confused.
* Plugin Author [kognetiks](https://wordpress.org/support/users/kognetiks/)
* (@kognetiks)
* [3 months, 2 weeks ago](https://wordpress.org/support/topic/error-duplicate-request-detected/#post-18763344)
* Hello [limest](https://wordpress.org/support/users/limest/) (@limest),
* There is not a specific translation file for the UK so the chatbot defaults to
US when there is no specific match. There are translation file for CS, DE, ES,
FR, IT, PL, PT and RU. I’ll fix the error on line 58.
Here is a link to an updated
version:[https://kognetiks.com/wp-content/uploads/2025/12/chatbot-chatgpt.zip](https://kognetiks.com/wp-content/uploads/2025/12/chatbot-chatgpt.zip)
* To clarify, [chatbot] calls the general OpenAI chatbot API. When using [chatbot-
n] where n = 1, 2, etc., it’s specifically calling the API to access your assistants
on the OpenAI platform (a different API endpoint at OpenAI).
* The chatbot was not designed to invoke more than one chatbot on the site. The
use case for having a mulitple bots on the same page – for example one embedded
on the page that call as assistant and one in footer that calls the general chatbot
or a different assistant but is floating – is something I’ve been pondering for
a while.
I’ll see what I can do to prioritize supporting multiple chatbots on
the same page.
* In the meantime, let me know if this latest version clears up the issues you’re
experiencing.
* Best,
* Stephen
* Thread Starter [limest](https://wordpress.org/support/users/limest/)
* (@limest)
* [3 months, 2 weeks ago](https://wordpress.org/support/topic/error-duplicate-request-detected/#post-18763427)
* Thank you for the quick response and the updated version!
* **Important clarification:** I only have ONE shortcode on my site: [chatbot-2]
which calls a single assistant. I don’t use multiple chatbots on the same page.
The issue was that this single assistant shortcode wasn’t working at all (returning“
error” with no response), while [chatbot] (general API) worked fine.
* I tested the version you provided, but still encountered some issues that I had
to fix:
* 1. Headers Already Sent Warning (line 58)
The setcookie() in kognetiks_assign_unique_id()
still triggers a warning when headers are already sent. I added a headers_sent()
check:
* ```wp-block-code
if (!headers_sent()) { setcookie(...);}
```
* 2. Infinite Retry Loop on Failed Runs
When OpenAI returns status: failed, the
code keeps creating new runs in an infinite loop until timeout. I added detection
of failed status and automatic stop after a few consecutive failures.
* 3. Root Cause of **My Original Issue**
The assistant was failing because:
- `max_prompt_tokens` was set too low (2000) for my assistant instructions (
~5000+ tokens)
- The model was returning server_error with very long instructions
- I had file_search enabled without a Vector Store attached
* After shortening my instructions and moving content to a Vector Store file, everything
works now.
* 4. Ukrainian Translation Files
I created translation files for my Ukrainian-Spanish
site:
- uk.php
- chatbot-globals-uk.php
* If you’re interested, I can send you the Ukrainian translation files for other
Ukrainian users.
* Best regards
* Plugin Author [kognetiks](https://wordpress.org/support/users/kognetiks/)
* (@kognetiks)
* [3 months, 2 weeks ago](https://wordpress.org/support/topic/error-duplicate-request-detected/#post-18763737)
* Hello [limest](https://wordpress.org/support/users/limest/) (@limest),
* Thank you for the additional testing.
* I’ve made a small change in the code to address the headers sent warning you’re
getting.
* I’ve also made a change in the number of retries for failed attempts (now limited
to 3).
* This should resolved the infinite loop problem you are experiencing.
* I’ve added support for Ukainian translations.
* Before downloading and testing the version below you should back up your UK translation
file.
* I used ChatGPT to create the translations. I would appreciate your review of
contents.
* Feel free to provide me with your version of the UK translation file. More than
happy to incorporate it.
* As for the max token setting for assistant, OpenAI recommends using 20,000.
* More details about this setting can be found in the Advanced Additional Settings
documentation here:
[https://kognetiks.com/docs/assistants-manage-assistants/](https://kognetiks.com/docs/assistants-manage-assistants/)
* And here:
* [https://platform.openai.com/docs/assistants/deep-dive#max-completion-and-max-prompt-tokens](https://platform.openai.com/docs/assistants/deep-dive#max-completion-and-max-prompt-tokens)
* Please download and install this update and let me know if there are any further
issues.
* [https://kognetiks.com/wp-content/uploads/2025/12/chatbot-chatgpt.zip](https://kognetiks.com/wp-content/uploads/2025/12/chatbot-chatgpt.zip)
* Best,
Stephen
* Thread Starter [limest](https://wordpress.org/support/users/limest/)
* (@limest)
* [3 months, 2 weeks ago](https://wordpress.org/support/topic/error-duplicate-request-detected/#post-18763782)
* Hi Stephen,
* Thank you for the quick update! I downloaded and checked the latest version from
your link, but I noticed the changes you mentioned don’t appear to be included:
* 1. Headers Already Sent Warning
The kognetiks_assign_unique_id() function in
chatbot-chatgpt.php (lines 53-63) still has setcookie() without a headers_sent()
check.
* 2. Retry Limit
In chatbot-call-openai-api-assistant.php $maxRetries is still
set to 10, not 3.
* Also, there’s no detection of consecutive failed status to stop retrying early
when OpenAI keeps returning errors.
* 3. Ukrainian Translation Files
The following files are not present in the ZIP:
- chatbot-globals-uk.php
- uk.php
* Only CS, DE, EN, ES, FR, IT, PL, PT, and RU are included.
* Could you please verify you uploaded the correct ZIP file? Perhaps an older version
was uploaded by mistake?
* I’ve implemented my own fixes for all the issues mentioned, so I consider this
resolved on my end. I’m happy to share my changes if useful for the official
release.
* Thank you!
* Best regards
* Plugin Author [kognetiks](https://wordpress.org/support/users/kognetiks/)
* (@kognetiks)
* [3 months, 2 weeks ago](https://wordpress.org/support/topic/error-duplicate-request-detected/#post-18763814)
* Hello [limest](https://wordpress.org/support/users/limest/) (@limest),
Here is
the updated zip file:[https://kognetiks.com/wp-content/uploads/2025/12/chatbot-chatgpt.zip](https://kognetiks.com/wp-content/uploads/2025/12/chatbot-chatgpt.zip)
* Let me know if there are any open issues that remain.
Best,Stephen
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* 9 replies
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* Last reply from: [kognetiks](https://wordpress.org/support/users/kognetiks/)
* Last activity: [3 months, 2 weeks ago](https://wordpress.org/support/topic/error-duplicate-request-detected/#post-18763814)
* Status: resolved