www.test.com访问出错 test.com访问正常 是为什么？在线急等

<VirtualHost *:80>
ServerName www.test.com
ServerAlias test.com hangzhou.test.com wenzhou.test.com ningbo.test.com shaoxin.test.com
DocumentRoot /htdocs/webfile/
ServerAdmin [email protected]
AddDefaultCharset utf-8
ErrorLog "|/usr/local/apache2/bin/rotatelogs /usr/local/apache2/logs/test/%Y_%m_%d_error_log 86400 480"
</VirtualHost>

<VirtualHost *:80>
ServerName www.tests.com
ServerAlias tests.com 
DocumentRoot /htdocs/tests/www.tests.com/
AddDefaultCharset gb2312
DirectoryIndex index.html index.php index.htm
ErrorDocument 404 /error.html
#CustomLog "/usr/local/apache2/logs/tests/tests.log" combined
ErrorLog "|/usr/local/apache2/bin/rotatelogs /usr/local/apache2/logs/tests/%Y_%m_%d_error_log 86400 480"
CustomLog "|/usr/local/apache2/bin/rotatelogs /usr/local/apache2/logs/tests/%Y_%m_%d_access_log 86400 480" common
</VirtualHost>

以上是我的虚拟主机配置www.test.com访问出错 test.com访问正常
www.tests.com和tests.com访问都正常
这是为什么？

好奇怪呀，竟然好了，也没有改东西

悄悄的路过！