Native error

Message:

iconv(): Detected an illegal character in input string in engine/filesystem.php on line 80.

Stack Trace:

#0 [internal function]: Error::native(8, 'iconv(): Detect...', 'D:\\www\\martenic...', 80, Array)
#1 D:\www\martenici-petya.com\engine\filesystem.php(80): iconv('utf-8', 'windows-1252', 'app/pages/\xEF\xBF\xBD\xEF\xBF...')
#2 D:\www\martenici-petya.com\engine\filesystem.php(116): Filesystem::encode('app/pages/\xEF\xBF\xBD\xEF\xBF...')
#3 D:\www\martenici-petya.com\engine\core.php(407): Filesystem::existsFile('app/pages/\xEF\xBF\xBD\xEF\xBF...')
#4 D:\www\martenici-petya.com\index.php(30): Core->run()
#5 {main}

Context:

73    *
74    * @param string $filename
75    * @return string
76    */
77   public static function encode( $filename )
78   {
79     return static::$encode
80            ? iconv( Text::$config['charset'], static::$config['charset'], $filename )
81            : $filename;
82   }
83 
84   /**
85    * Декодира име на файл/директория
86    *
87    * @param string $filename