Update app.py

app.py

@@ -11,7 +11,7 @@ def main(url, parameters, progress=gr.Progress()):
     This function reports progress by yielding intermediate updates. 
     Gradio watches these yields to update the progress bar.
     """
-    font_type, font_size, font_color, service, target, style, subject = params_string.split(',')
+    font_type, font_size, font_color, service, target, style, subject = parameters.split(',')
     # Assume parameters is a comma-separated string: "color,font"
     progress(0, desc="پردازش شروع شد")
     yield "پردازش شروع شد", None