Update app.py

app.py

@@ -48,7 +48,7 @@ def generate_script(host_name, listener_location, causes_climate_change, co2_lev
         error_message = f"Error: {e}"
 
         # Save error log to a file
-        with open("error_log.txt", "a") as log_file:
+        with open("./error_log.txt", "a") as log_file:
             log_file.write(error_message + "\n")
 
         return error_message