网站突然打开报错如下：
Notice: Undefined variable: data in D:\wwwroot\hongyu\wwwroot\includes\lib_base.php on line 1241
Warning: require(D:/wwwroot/hongyu/wwwroot/languages//common.php) [function.require]: failed to open stream: No such file or directory in D:\wwwroot\hongyu\wwwroot\includes\init.php on line 120
Fatal error: require() [function.require]: Failed opening required 'D:/wwwroot/hongyu/wwwroot/languages//common.php' (include_path='.;D:/wwwroot/hongyu/wwwroot/') in D:\wwwroot\hongyu\wwwroot\includes\init.php on line 120
处理方法（亲测可用）：
到站点temp文件夹下的static_caches文件下的文件都删除就可以了，刷新网站恢复正常。