为什么我的论坛后台更新缓存就这样

为什么我的论坛后台更新缓存就这样
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Warning: array_merge() [function.array-merge]: Argument #2 is not an array in wwwroot\include\cache.func.php on line 90

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in wwwroot\include\cache.func.php on line 90

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in wwwroot\include\cache.func.php on line 90

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in wwwroot\include\cache.func.php on line 90

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in wwwroot\include\cache.func.php on line 90

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in wwwroot\include\cache.func.php on line 90

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in wwwroot\include\cache.func.php on line 90

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in wwwroot\include\cache.func.php on line 90

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in wwwroot\include\cache.func.php on line 90

安装在同一个目录的DZ正常