Fatal error: Uncaught OpenAI\Exceptions\ErrorException: Message content must be non-empty. in /home/amiraliz/public_html/agent/vendor/openai-php/client/src/Transporters/HttpTransporter.php:179 Stack trace: #0 /home/amiraliz/public_html/agent/vendor/openai-php/client/src/Transporters/HttpTransporter.php(66): OpenAI\Transporters\HttpTransporter->throwIfJsonError() #1 /home/amiraliz/public_html/agent/vendor/openai-php/client/src/Resources/ThreadsMessages.php(32): OpenAI\Transporters\HttpTransporter->requestObject() #2 /home/amiraliz/public_html/agent/chat-text.php(20): OpenAI\Resources\ThreadsMessages->create() #3 {main} thrown in /home/amiraliz/public_html/agent/vendor/openai-php/client/src/Transporters/HttpTransporter.php on line 179