Can't use the forum

It seems like short open tag might not be enabled for your hosting. Ask your host to enable it or you could probably do it yourself with php.ini or htaccess depending on whether you have a cgi based server or apache module. Ask your host to enable short open tag first if possible. Also make sure xsl/xslt is enabled on your hosting account.

By the way boonex.cn is probably not a good choice of a website.

Your site seems down at the moment. It is difficult to test at the moment. Will try again later if I don't forget.

I install the site again,please

It seems the forum css and js

It looks like you either need to enable short_open_tag, or PHP was not compiled with XSLT support.

i don't know the exact reason but every < is showing &lt; and > is showing &gt;

for example

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

is showing

&lt;meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /&gt;

have you played with the codes and replace htmlspecialchars from any file?

You need to compile PHP with XSLT support.  It's been a while since I've seen this problem, because Orca now checks for this extension before allowing itself to be installed.  You probably moved servers or updated PHP without the proper extensions compiled.

Nathan is right, XSL extension isn't enabled or isn't compiled in your PHP setup.

The problem is that you have very old buggy XSL extension - 1.1.17, please upgrade libxsl and recompile php with updated xsl library.

How to update the xsl?

I don't know the download address.

You need to either recompile PHP with --with-xsl, or (if you installed PHP via this method) install the extension through your distribution's package manager.