Fatal error: Uncaught TypeError: Azure::chatWithAssistant(): Argument #1 ($assistantId) must be of type string, null given, called in /opt/bitnami/apache/htdocs/functions.php on line 168 and defined in /opt/bitnami/apache/htdocs/services/azure.php:473 Stack trace: #0 /opt/bitnami/apache/htdocs/functions.php(168): Azure->chatWithAssistant() #1 /opt/bitnami/apache/htdocs/process.php(373): openAICall() #2 {main} thrown in /opt/bitnami/apache/htdocs/services/azure.php on line 473