Error: Output handler ‘ob gzhandler’ cannot be used twice

[phpBB Debug] PHP Notice: in file / xx / xxxx xxx.php on line: ob_start () [ref.outcontrol]: output handler ‘ob_gzhandler’ can not be used twice RESOLUTION

Run SQL:
UPDATE phpbb_config SET config_value = 0 WHERE config_name = ‘gzip_compress’;

Note!
After you follow these instructions do not forget to clear the cache!