XenForo Home page Issue

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So I was told by My hosting site to ask a XenForo Developer while they try to fix it. When I go on my website http://earthlordpvp.com I see this message:
Warning: require(/home/earthlor/library/XenForo/Autoloader.php): failed to open stream: No such file or directory in /home/earthlor/public_html/index.php on line 8

Fatal error: require(): Failed opening required '/home/earthlor/library/XenForo/Autoloader.php' (include_path='.:/opt/alt/php55/usr/share/pear:/opt/alt/php55/usr/share/php') in /home/earthlor/public_html/index.php on line 8
Now it could be because I haven't uploaded ALL Files yet But I uploaded the home page one.
This is what they said:

Chris C - A2 Hosting Support: '/home/earthlor/library/ doesn't exist, so it looks like you haven't uploaded all of the files yet.
21:58Chris C - A2 Hosting Support: You'll need to upload all the necessary files for your scripts to run correctly.
21:59Aureus: Alright Thank You guys!
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