Fatal error: Cannot use 'String' as class name as it is reserved in /home/bn94xt96/cake/lib/Cake/Utility/String.php on line 26

Fatal error: Uncaught Error: Class 'String' not found in /home/bn94xt96/cake/lib/Cake/Utility/Debugger.php:343 Stack trace: #0 /home/bn94xt96/cake/lib/Cake/Utility/Debugger.php(711): Debugger::trace(Array) #1 /home/bn94xt96/cake/lib/Cake/Error/ErrorHandler.php(178): Debugger->outputError(Array) #2 [internal function]: ErrorHandler::handleError(2, 'mkdir(): Permis...', '/home/bn94xt96/...', 301, Array) #3 /home/bn94xt96/cake/lib/Cake/Cache/Engine/FileEngine.php(301): mkdir('../../cake/app/...', 511, true) #4 /home/bn94xt96/cake/lib/Cake/Cache/Engine/FileEngine.php(117): FileEngine->_setKey('myapp_cake_core...', true) #5 /home/bn94xt96/cake/lib/Cake/Cache/Cache.php(298): FileEngine->write('myapp_cake_core...', Array, 10) #6 /home/bn94xt96/cake/lib/Cake/Core/App.php(893): Cache::write('file_map', Array, '_cake_core_') #7 [internal function]: App::shutdown() #8 {main} thrown in /home/bn94xt96/cake/lib/Cake/Utility/Debugger.php on line 343