fix: add explicit server name and port

app.py

@@ -43,6 +43,8 @@ iface = gr.Interface(
     outputs=gr.File(label="Text file", type="file", encoding="utf-8"),
     title="PDF to Text Converter",
     description="Converts a PDF file to text using Tesseract OCR.",
+    server_name="0.0.0.0", 
+    server_port=7860
 ).queue(concurrency_count=10)
 
 iface.launch()