A template that extends another one cannot include content outside Twig blocks. Did you forget to put the content inside a {% block %} tag in "contact.twig" at line 1?
#0 /home/maxwarec/domains/goutez-y.com/vendor/twig/twig/src/Parser.php(562): Twig\Parser->filterBodyNodes()
#1 /home/maxwarec/domains/goutez-y.com/vendor/twig/twig/src/Parser.php(103): Twig\Parser->filterBodyNodes()
#2 /home/maxwarec/domains/goutez-y.com/vendor/twig/twig/src/Environment.php(558): Twig\Parser->parse()
#3 /home/maxwarec/domains/goutez-y.com/vendor/twig/twig/src/Environment.php(589): Twig\Environment->parse()
#4 /home/maxwarec/domains/goutez-y.com/vendor/twig/twig/src/Environment.php(408): Twig\Environment->compileSource()
#5 /home/maxwarec/domains/goutez-y.com/vendor/twig/twig/src/Environment.php(370): Twig\Environment->loadTemplate()
#6 /home/maxwarec/domains/goutez-y.com/vendor/twig/twig/src/Environment.php(333): Twig\Environment->load()
#7 /home/maxwarec/domains/goutez-y.com/src/Core/Http/BaseController.php(135): Twig\Environment->render()
#8 /home/maxwarec/domains/goutez-y.com/src/Core/Controllers/AppController.php(22): App\Core\Http\BaseController->render()
#9 [internal function]: App\Core\Controllers\AppController->contact()
#10 /home/maxwarec/domains/goutez-y.com/src/Core/Application/Container.php(439): ReflectionMethod->invokeArgs()
#11 /home/maxwarec/domains/goutez-y.com/src/Core/Application/Router.php(421): App\Core\Application\Container->call()
#12 /home/maxwarec/domains/goutez-y.com/src/Core/Application/Router.php(381): App\Core\Application\Router->callAction()
#13 /home/maxwarec/domains/goutez-y.com/src/Core/Application/Router.php(391): App\Core\Application\Router->{closure:App\Core\Application\Router::dispatch():380}()
#14 /home/maxwarec/domains/goutez-y.com/src/Core/Application/Router.php(380): App\Core\Application\Router->runMiddleware()
#15 /home/maxwarec/domains/goutez-y.com/bootstrap/app.php(556): App\Core\Application\Router->dispatch()
#16 /home/maxwarec/domains/goutez-y.com/public_html/index.php(75): Application->run()
#17 {main}