Update app.py

app.py

@@ -364,7 +364,7 @@ def summarize(inp,history,report_check,chart_check,data=None,files=None,url=None
         else:
             rawp = out
         if chart_check:
-            error_box = get_chart(rawp)
+            error_box = get_chart(str(rawp))
             
     else:
         rawp = "Provide a valid data source"