Fatal error: Cannot use 'String' as class name as it is reserved in /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Utility/String.php on line 24

Fatal error: During inheritance of ArrayAccess: Uncaught Error: Class "CakeRequest" not found in /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/I18n/L10n.php:416 Stack trace: #0 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/I18n/L10n.php(354): L10n->_autoLanguage() #1 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/I18n/I18n.php(221): L10n->get(NULL) #2 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/basics.php(636): I18n::translate('From requires o...', NULL, 'cake_dev') #3 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Network/Email/CakeEmail.php(375): __d('cake_dev', 'From requires o...') #4 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Network/Email/CakeEmail.php(1252): CakeEmail->from(Array) #5 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Network/Email/CakeEmail.php(1136): CakeEmail->_applyConfig(Array) #6 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Network/Email/CakeEmail.php(355): CakeEmail->config('kiite') #7 /home/users/2/main.jp-cosmix/web/dev02/app/Lib/AppError.php(13): CakeEmail->__construct('kiite') #8 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Network/CakeRequest.php(30): AppError::handleError(8192, 'Return type of ...', '/home/users/2/m...', 1026) #9 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Core/App.php(567): include('/home/users/2/m...') #10 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/I18n/L10n.php(416): App::load('CakeRequest') #11 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/I18n/L10n.php(354): L10n->_autoLanguage() #12 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/I18n/I18n.php(221): L10n->get(NULL) #13 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/basics.php(636): I18n::translate('From requires o...', NULL, 'cake_dev') #14 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Network/Email/CakeEmail.php(375): __d('cake_dev', 'From requires o...') #15 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Network/Email/CakeEmail.php(1252): CakeEmail->from(Array) #16 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Network/Email/CakeEmail.php(1136): CakeEmail->_applyConfig(Array) #17 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Network/Email/CakeEmail.php(355): CakeEmail->config('kiite') #18 /home/users/2/main.jp-cosmix/web/dev02/app/Lib/AppError.php(13): CakeEmail->__construct('kiite') #19 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Core/App.php(931): AppError::handleError(64, 'Cannot use 'Str...', '/home/users/2/m...', 24, Array) #20 /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Core/App.php(904): App::_checkFatalError() #21 [internal function]: App::shutdown() #22 {main} in /home/users/2/main.jp-cosmix/web/dev02/lib/Cake/Network/CakeRequest.php on line 30