大侠们，最近几个星期google浏览器都不能下载NBER的论文，老是出现如下错误：
Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, web@nber.org and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

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Apache/2.2.16 (FreeBSD) mod_ssl/2.2.16 OpenSSL/0.9.8n PHP/5.3.3 with Suhosin-Patch mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1 Server at papers.nber.org Port 80
本人对电脑方面一窍不通，望高人指点迷津。
PS:其他浏览器都能够下载NBER的论文，真的狠奇怪。