What does this error mean

[eluser]sihijau[/eluser]
i have this problem too,

Fatal error: ob_start() [<a href='ref.outcontrol'>ref.outcontrol</a>]: Cannot use output buffering in output buffering display handlers in /home/nuazlnet/public_html/lapak/system/libraries/Exceptions.php on line 162

what solution for this problem?

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Oh i have solve this problem, to set this line in config.php to be FALSE

Code:

$config['compress_output'] = TRUE;