fix

app.py

@@ -128,7 +128,7 @@ with gr.Blocks() as iface:
     campaign_details_input = gr.Textbox(
         lines=10,
         placeholder="Enter your Brand and campaign details here",
-        value=default_value,
+        value=default_value if default_value else "",
         label="Campaign Details",
         elem_id="campaign_details_textarea"
     )