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(1/1) ContextErrorException

Warning: Cannot modify header information - headers already sent by (output started at /home/sellerie5/www/shop/config/defines.inc.php:1)
in ProductController.php line 166
at ProductControllerCore->init()in Controller.php line 273
at ControllerCore->run()in Dispatcher.php line 515
at DispatcherCore->dispatch()in index.php line 28