>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3573992. --> Reported by: [ultimike](https://www.drupal.org/user/51132) >>> <p>[Tracker]<br> <strong>Update Summary: </strong>[One-line status update for stakeholders]<br> <strong>Short Description: </strong>[One-line issue summary for stakeholders]<br> <strong>Check-in Date: </strong>MM/DD/YYYY<br> <em>Metadata is used by the <a href="https://www.drupalstarforge.ai/" title="AI Tracker">AI Tracker.</a> Docs and additional fields <a href="https://www.drupalstarforge.ai/ai-dashboard/docs" title="AI Issue Tracker Documentation">here</a>.</em><br> [/Tracker]</p> <h3 id="summary-problem-motivation">Problem/Motivation</h3> <p>While working on a local site building out some AI functionality, my AI Assistants suddenly stopped working. </p> <p>There were no entries in the AI Logs suggesting that no LLM calls were being made. </p> <p>In the Drupal's <em>Recent log messages</em>, I did spot several errors similar to:</p> <p><code>The chatbot had an error: Couldn't acquire lock to update item '1:assistant_thread_1_7' in 'tempstore.private.ai_assistant_api' temporary storage.</code></p> <p>and </p> <p><code>Drupal\Core\TempStore\TempStoreException: Couldn't acquire lock to delete item '1:assistant_thread_1_7' from 'tempstore.private.ai_assistant_api' temporary storage. in Drupal\Core\TempStore\PrivateTempStore-&gt;delete() (line 192 of /var/www/html/web/core/lib/Drupal/Core/TempStore/PrivateTempStore.php).</code></p> <h4 id="summary-steps-reproduce">Steps to reproduce (required for bugs, but not feature requests)</h4> <p>I am using the AI module version 1.2.8. I have no idea what caused the issue.</p> <h3 id="summary-proposed-resolution">Resolution</h3> <p>Ultimately, I cleared out the tempstore using the following commands:</p> <pre>mysql -e "DELETE FROM semaphore WHERE name LIKE '%assistant_thread%';"<br>mysql -e "DELETE FROM key_value_expire WHERE collection = 'tempstore.private.ai_assistant_api';"</pre><p>After I did this, the assistants started working again. </p> <h3 id="summary-remaining-tasks">Remaining tasks</h3> <p>None. I'm just adding this issue in case it can help anyone in the future.</p>