求助， typecho 分类目录出错

http://www.zuanfeng.net/category/vps/ 这个分类打开是正常的
http://www.zuanfeng.net/category/domain/ 这个就出错误了
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为什么不是一起出错，而是一个正常一个错误？这个错误有没有解决办法?
我把主题模板切换回官方自带的主题模板就都正常，没有新的错误记录产生。换成我上传的就产生新的日志，但是分类目录又能打开一阵子，过一阵子又是出错。

PHP message: PHP Notice: Undefined index: slug in /usr/share/nginx/html/var/Widget/Abstract/Contents.php on line 667
PHP message: PHP Notice: Undefined index: slug in /usr/share/nginx/html/var/Widget/Abstract/Contents.php on line 670
PHP message: PHP Notice: Undefined index: cid in /usr/share/nginx/html/var/Widget/Abstract/Contents.php on line 639
PHP message: PHP Notice: Undefined index: created in /usr/share/nginx/html/var/Widget/Abstract/Contents.php on line 653
PHP message: PHP Notice: Undefined index: type in /usr/share/nginx/html/var/Widget/Abstract/Contents.php on line 664
PHP message: PHP Notice: Undefined index: slug in /usr/share/nginx/html/var/Widget/Abstract/Contents.php on line 667
PHP message: PHP Notice: Undefined index: slug in /usr/share/nginx/html/var/Widget/Abstract/Contents.php on line 670" while reading response header from upstream, client: 23.4.92.14, server: zuanfeng.net, request: "GET /category/vps/ HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "www.zuanfeng.net", referrer: "http://www.zuanfeng.net/category/domain/"
2016/01/29 13:03:33 [error] 12176#0: *1 FastCGI sent in stderr: "PHP message: PHP Notice: Undefined index: cid in /usr/share/nginx/html/var/Widget/Abstract/Contents.php on line 639
PHP message: PHP Notice: Undefined index: created in /usr/share/nginx/html/var/Widget/Abstract/Contents.php on line 653