Modified UA: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

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<b>Fatal error</b>:  Uncaught ValueError: array_rand(): Argument #2 ($num) must be between 1 and the number of elements in argument #1 ($array) in /www/wwwroot/sogou.kwhc.cn/index.php:286
Stack trace:
#0 /www/wwwroot/sogou.kwhc.cn/index.php(286): array_rand()
#1 /www/wwwroot/sogou.kwhc.cn/index.php(341): replaceArticleContent()
#2 /www/wwwroot/sogou.kwhc.cn/index.php(393): processTemplate()
#3 {main}
  thrown in <b>/www/wwwroot/sogou.kwhc.cn/index.php</b> on line <b>286</b><br />