Problem with functions.php – urgent help needed!

Help!  I wanted to hide the WP admin bar at the top of the webpages … I found some help on WP.org, which advised to drop a line of code into the functions.php file.

I did so, but it didn’t work, and there was a disastrous side effect – I couldn’t navigate back into my admin area, or log out of the public website – I kept getting re-directed to a blank page.

I’ve deleted the new line of code, and re-saved the settings in functions.php, so it SHOULD be back to normal … BUT IT ISN’T!  The problems remain.

I’m no programming genius.  I don’t know what to do.  But I have a horrible feeling …

The current contents of my functions.php file are as follows.  Can anyone either (a) suggest changes to bring normality back, or (b) advise how else to restore normal functions?

thanks!

—

<?php
/*
* Functions file
* Includes all necesary files
* PLEASE DO NOT EDIT THIS FILE IN ANY WAY
*
* @package mantra
*/

require_once(dirname(__FILE__) . “/admin/main.php”); // Load necessary admin files

//Loading include fiels
require_once(dirname(__FILE__) . “/includes/theme-setup.php”); //Setup and init theme
require_once(dirname(__FILE__) . “/includes/theme-styles.php”); //Register and enqeue css styles and scripts
require_once(dirname(__FILE__) . “/includes/theme-loop.php”); //Loop related fiels
require_once(dirname(__FILE__) . “/includes/theme-seo.php”); //SEO related fiels
require_once(dirname(__FILE__) . “/includes/theme-frontpage.php”); //Frontpage generation
require_once(dirname(__FILE__) . “/includes/theme-comments.php”); //Theme comment functions
require_once(dirname(__FILE__) . “/includes/theme-shortcodes.php”); //Theme shortcodes
require_once(dirname(__FILE__) . “/includes/theme-functions.php”); //Theme misc functions
require_once(dirname(__FILE__) . “/includes/theme-hooks.php”); //Theme hooks

?>