[TYPO3-english] Fatal error: Cannot run code from this file in conjunction with non encoded files

[ThaiPo3 The Ultimate Usergroup]

Hi we have problem that we get Error when try to open backend 4.2.6 or 4.3.0alpha2  same problem! Cannot run code from this file in conjunction with non encoded files in /domain/typo3conf/ext/mmforum/mod1/conf.php on line 392  or  Fatal error: Cannot run code from this file in conjunction with non encoded files in /domain/typo3src4.2.6/typo3/mod/file/conf.php on line 392Any help appreciatedManaDear TYPO3 English ! Get Yourself a cool, short @in.com Email ID now!