Update utility/script_generator.py

utility/script_generator.py

@@ -53,7 +53,7 @@ def generate_script(topic):
         json_end = generated_text.rfind('}') + 1
         script = json.loads(generated_text[json_start:json_end])["script"]
     
-    return script
+    return str(script)
 
 # # Example usage
 # topic = "Weird facts"