WPML step 4 AI Translation

This thread is resolved. Here is a description of the problem and solution.

Problem:
You are experiencing an issue where the AI Translation Assistant on your WordPress site gets stuck at Step 4: 'Loading AI Translation…'. This occurs due to a REST API issue related to OVH mutual hosting and HTTP/2 handling. The JavaScript console shows errors indicating that the ATE dashboard bootstrap function is not available and a 'GET' request error due to HTTP/2 protocol.
Solution:
A permanent fix will be included in an upcoming update.

If this solution does not resolve your issue or seems irrelevant due to being outdated or not applicable to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the problem persists, please open a new support ticket at WPML support forum for further assistance.

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Tagged: Exception

This topic contains 9 replies, has 1 voice.

Last updated by jeremyD-18 5 months, 2 weeks ago.

Assisted by: Andrey.

Author	Posts
October 20, 2025 at 9:10 pm #17501112
jeremyD-18	Background of the issue: I am experiencing an issue with the AI Translation Assistant on my WordPress site (hidden link). The assistant gets stuck at Step 4: 'Loading AI Translation…' and never progresses. I have already tried troubleshooting by checking server and WordPress setup, disabling plugins, and reviewing WPML configuration. I also checked JavaScript console errors and observed a REST API issue related to OVH mutual hosting and HTTP/2 handling. Symptoms: The AI Translation Assistant gets stuck at Step 4: 'Loading AI Translation…'. JavaScript console shows: 'Error in AITranslation component: Error: ATE dashboard bootstrap function is not available on window.ateDashboard' and 'GET hidden link... net::ERR_HTTP2_PROTOCOL_ERROR 200 (OK)'. Questions: How can I make the AI Translation Assistant load on OVH mutual hosting? Is there a way to complete the AI translation setup without relying on the assistant dashboard?
October 21, 2025 at 7:24 am #17501584
jeremyD-18	This post is link to the wpml-setup-stuck-on-4th-step/#post-17501172 I have the same problem and I am stuck at step 4. I have tried all the solutions already suggested: deactivating plugins, switching theme... app.js?ver=483900:1 Error in AITranslation component: Error: ATE dashboard bootstrap function is not available on window.ateDashboard at app.js?ver=483900:1:7996 at new Promise (<anonymous>) at app.js?ver=483900:1:7385 at u (app.js?ver=483900:662:5830) at Generator._invoke (app.js?ver=483900:662:5583) at Generator.next (app.js?ver=483900:662:6189) at n (app.js?ver=483900:15:13709) at s (app.js?ver=483900:15:13920)
October 21, 2025 at 8:46 am #17502030
Andrey WPML Supporter since 06/2013 Languages: English (English ) Russian (Русский ) Timezone: Europe/Kyiv (GMT+03:00)	Thank you for contacting WPML support. We experienced an operational issue with some of our services, which could affect certain WPML functionalities. Could you please try again now and see if it’s working? Before doing so, please also check with your hosting provider to ensure the following domains are not blocked and are whitelisted: • wpml.org • cdn.wpml.org • api.wpml.org • api.toolset.com • cloudfront.net
October 21, 2025 at 9:01 am #17502093
jeremyD-18	Thank you for your help. It’s still blocked. I created a PHP script to test the domains — here’s the result: Testing https://wpml.org ✅ HTTP response code: 200 Testing hidden link ✅ HTTP response code: 200 Testing hidden link ✅ HTTP response code: 200 Testing hidden link ✅ HTTP response code: 200 Testing hidden link ❌ cURL error: Could not resolve host: cloudfront.net
October 21, 2025 at 11:56 am #17502917
Andrey WPML Supporter since 06/2013 Languages: English (English ) Russian (Русский ) Timezone: Europe/Kyiv (GMT+03:00)	Thank you for your feedback. I need to request temporary access (wp-admin and FTP) to your site to be of better help. When you log in to leave your next reply, you will find the needed fields below the comment area. The information you will enter is private, meaning only you and I can see and access it.
October 21, 2025 at 1:39 pm #17503353
benoitF-4	Hello everybody, i have update all my websites into the last version of WPML today i i have the same ERR_HTTP2_PROTOCOL_ERROR error on my browser console on each page of the wp-admin. That slow down the loading time of all the pages. I have a stagging website with this error, i can give you a private access if you want. Let me know
October 21, 2025 at 3:08 pm #17503682
Andrey WPML Supporter since 06/2013 Languages: English (English ) Russian (Русский ) Timezone: Europe/Kyiv (GMT+03:00)	Thank you for providing the access. Our developers are aware of this issue. In the meantime, could you please try the following workaround? 1. Go to: /wp-content/plugins/sitepress-multilingual-cms/classes/API/REST/WPML_Proxy.php 2. Locate line 175 in the file. 3. Comment out the following line: // $respHeaders['Content-Length'] = (string) strlen( (string) $body ); A permanent fix will be included in an upcoming update. @benoitF-4, if you still experience the issue after applying the workaround, please submit a separate ticket, and we will assist you. @jeremyD-18, the issue is resolved for you using the steps above. Before making any changes, please ensure that you back up your database first.
October 21, 2025 at 4:11 pm #17503827
jeremyD-18	Thank you very much for your help! There won’t be any conflict with the upcoming permanent fix? Have a good evening!
October 21, 2025 at 4:13 pm #17503829
Andrey WPML Supporter since 06/2013 Languages: English (English ) Russian (Русский ) Timezone: Europe/Kyiv (GMT+03:00)	Thank you for your feedback. No, the fix will be the same. Have a good one, too!
October 21, 2025 at 4:23 pm #17503852
jeremyD-18	I’m going to try retranslating my site tomorrow before closing the ticket, just in case there’s another conflict.