What does this error mean?

[Bouncer222]

What does this error mean and how would I fix it? Please tell me, thank you :)

I get the following error when going to:
http://www.brotherhoodofgamers.com/invite_steam.php

Warning: require_once(HTTP/Request.php) [function.require-once]: failed to open stream: No such file or directory in /home/brother6/public_html/invite_steam.php on line 29

Fatal error: require_once() [function.require]: Failed opening required 'HTTP/Request.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/brother6/public_html/invite_steam.php on line 29

[KevinL]

Did you upload the files to the right place?

[compwhizii]

It means it's trying to load some files and it can't find them. Make sure you uploaded everything to the right place.

[Bouncer222]

yes it is in the right place. this happened after i upgraded from shared hosting to VPS hosting.
how to fix this?
Please help.

[compwhizii]

From my understanding those files are part of a PEAR package, this one http://pear.php.net/package/HTTP_Request/

[Bouncer222]

well would you think that if i upgraded from shared hosting to vps that i have to install that? because i never installed that before.

should i install it?

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how to install it by the way?

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i have linux by the way