Fatal Error wp-blog-header.php on line 12

I built a WordPress site to replace an html site, and tried to move it from /test-site to the root – it failed & I restored from backup version (and back into /test-site so I could continue running my old html site).

I cannot login to the admin panel and get the following fatal error:

Warning: require_once(/home/emerge31/public_html/test-site/wp-load.php): failed to open stream: No such file or directory in /home/emerge31/public_html/test-site/wp-blog-header.php on line 12

Fatal error: require_once(): Failed opening required ‘/home/emerge31/public_html/test-site/wp-load.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/emerge31/public_html/test-site/wp-blog-header.php on line 12

My error log shows:

[22-Oct-2014 14:45:15 America/Los_Angeles] PHP Warning: require(/home/emerge31/public_html/test-site/wp-blog-header.php): failed to open stream: No such file or directory in /home/emerge31/public_html/test-site/index.php on line 17
[22-Oct-2014 17:52:45 America/Los_Angeles] PHP Fatal error: require_once(): Failed opening required ‘/home/emerge31/public_html/test-site/wp-load.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/emerge31/public_html/test-site/wp-blog-header.php on line 12

And my .htacess shows:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /test-site/
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /test-site/index.php [L]
</IfModule>

# END WordPress

I have tried suggestions from similar issues from this support forum and just get lost. Any help would be much appreciated! Thank you.