系统出现错误

下面是技术需要的错误内容

Error Object
(
    [message:protected] => Class 'controller_upload' not found
    [string:Error:private] => 
    [code:protected] => 0
    [file:protected] => /_code/myapp.php
    [line:protected] => 246
    [trace:Error:private] => Array
        (
            [0] => Array
                (
                    [file] => /index.php
                    [line] => 29
                    [function] => dispatching
                    [class] => MyApp
                    [type] => ->
                )

        )

    [previous:Error:private] => 
)