500 Internal Server Error

Attempt to read property "id" on bool (2)

#0 /home/valentinv/www-v2/class/blog.php(77): flight\Engine->handleError(2, 'Attempt to read...', '/home/valentinv...', 77)
#1 /home/valentinv/www-v2/index.php(372): blog::get_blog_content('nouvelles_techn...')
#2 /home/valentinv/www-v2/flight/core/Dispatcher.php(164): {closure}('nouvelles_techn...', 'nouvelles_techn...')
#3 /home/valentinv/www-v2/flight/core/Dispatcher.php(143): flight\core\Dispatcher::callFunction(Object(Closure), Array)
#4 /home/valentinv/www-v2/flight/Engine.php(310): flight\core\Dispatcher::execute(Object(Closure), Array)
#5 /home/valentinv/www-v2/flight/core/Dispatcher.php(191): flight\Engine->_start()
#6 /home/valentinv/www-v2/flight/core/Dispatcher.php(142): flight\core\Dispatcher::invokeMethod(Array, Array)
#7 /home/valentinv/www-v2/flight/core/Dispatcher.php(48): flight\core\Dispatcher::execute(Array, Array)
#8 /home/valentinv/www-v2/flight/Engine.php(64): flight\core\Dispatcher->run('start', Array)
#9 /home/valentinv/www-v2/flight/core/Dispatcher.php(191): flight\Engine->__call('start', Array)
#10 /home/valentinv/www-v2/flight/Flight.php(65): flight\core\Dispatcher::invokeMethod(Array, Array)
#11 /home/valentinv/www-v2/index.php(745): Flight::__callStatic('start', Array)
#12 {main}