css Menu make code wrong.. need help?

Thanks anyone can help? when i follow the css menu & dataassist before the video to make the menu. on the

cssmw_content\menu.php
line 1<?php require_once('../../Connections/connbulesky.php'); ?>
line 2<?php

the video teach me the remove the line1. so i remove the line. the Memu is working. But when i add the Ecart on the page. ( The Menu link to the item page this itempage is working ) go to >add to cart button > shopping cart.php page. the page show this code wrong:

Warning: mysql_select_db(): supplied argument is not a valid MySQL-Link resource in C:\AppServ\www\yaozone\CSSMenuWriter\cssmw_content\menu.php on line 31

Warning: mysql_query(): supplied argument is not a valid MySQL-Link resource in C:\AppServ\www\yaozone\CSSMenuWriter\cssmw_content\menu.php on line 33

i before post same problem. before i am not add the ecart on page. is working. But now add ecart ( add to the cart button) on the page is not working. i don't know how to fix this problem. i buy super suit. with tools can be fix this problem.
The Webassist adminer toll me need to "You would need to either remove or update it" How to update it? Can you tell me how to do it is update?
But i am new to build. i don't know any code. can you teach me how to fix this ?

help me please? any one. i spend lot the time on this web.

Thanks anyone! leehua





and look at line 1

it appears that an incorrect connections reference is on this page.