Whitescreen im Backend und Installtool

[moron]

Ich habe eine 3.5er Installation erfolgreich auf 4.9 gebracht. BE und FE liefen einwandfrei. Einzige Auffälligkeit, dass ich beim Aufruf der Seitenstruktur 2-3x aktualisieren (F5) musste bis es geladen wurde
Auf einmal BE nur noch weiß. Manager ließ sich bis eben starten. Nun läuft er sich in der Systemprüfung tot und zeigt dann irgendwann "Der Contao Manager konnte einen Konsolentask nicht starten!"

Contao 4.9.2
PHP 7.4
Manager 1.2.4

Ich weiß nicht, wo ich anfangen soll.... Ich kann auch nicht sagen was ich großartig gemachte habe, als das System in die Knie ging... ich glaube Favicon ausgewählt :|

Dev-Log:

[2020-05-08 15:04:50] app.DEBUG: Router Symfony\Cmf\Component\Routing\DynamicRouter was unable to generate route. Reason: 'Route 'contao_frontend' not found': This router does not support routes by name [] []
[2020-05-08 15:04:50] app.DEBUG: Router Symfony\Bundle\FrameworkBundle\Routing\Router was unable to generate route. Reason: 'Route 'contao_frontend' not found': Unable to generate a URL for the named route "contao_frontend" as such route does not exist. [] []
[2020-05-08 15:04:50] app.DEBUG: Router Symfony\Cmf\Component\Routing\DynamicRouter was unable to generate route. Reason: 'Route 'contao_frontend' not found': This router does not support routes by name [] []
[2020-05-08 15:04:55] request.INFO: Matched route "contao_backend". {"route":"contao_backend","route_parameters":{"_route":"contao_backend","_scope":"backend","_token_check":true,"_controller":"Contao\\CoreBundle\\Controller\\BackendController::mainAction"},"request_uri":"https://dev.XXX.de/contao?do=page&ref=DxA4sEzL","method":"GET"} []
[2020-05-08 15:04:55] security.DEBUG: Read existing security token from the session. {"key":"_security_contao_backend","token_class":"Symfony\\Component\\Security\\Core\\Authentication\\Token\\UsernamePasswordToken"} []
[2020-05-08 15:04:55] security.DEBUG: User was reloaded from a user provider. {"provider":"Contao\\CoreBundle\\Security\\User\\ContaoUserProvider","username":"xxx"} []
[2020-05-08 15:05:18] request.INFO: Matched route "contao_backend". {"route":"contao_backend","route_parameters":{"_route":"contao_backend","_scope":"backend","_token_check":true,"_controller":"Contao\\CoreBundle\\Controller\\BackendController::mainAction"},"request_uri":"https://dev.XXX.de/contao?do=page&ref=DxA4sEzL","method":"GET"} []
[2020-05-08 15:05:45] request.INFO: Matched route "contao_backend". {"route":"contao_backend","route_parameters":{"_route":"contao_backend","_scope":"backend","_token_check":true,"_controller":"Contao\\CoreBundle\\Controller\\BackendController::mainAction"},"request_uri":"https://dev.XXX.de/contao","method":"GET"} []
[2020-05-08 15:07:42] request.INFO: Matched route "contao_install". {"route":"contao_install","route_parameters":{"_route":"contao_install","_scope":"backend","_token_check":true,"_controller":"Contao\\InstallationBundle\\Controller\\InstallationController::installAction"},"request_uri":"https://dev.XXX.de/contao/install","method":"GET"} []
[2020-05-08 15:18:29] request.INFO: Matched route "contao_install". {"route":"contao_install","route_parameters":{"_route":"contao_install","_scope":"backend","_token_check":true,"_controller":"Contao\\InstallationBundle\\Controller\\InstallationController::installAction"},"request_uri":"https://dev.XXX.de/contao/install","method":"GET"} []
[2020-05-08 15:21:14] request.INFO: Matched route "contao_backend". {"route":"contao_backend","route_parameters":{"_route":"contao_backend","_scope":"backend","_token_check":true,"_controller":"Contao\\CoreBundle\\Controller\\BackendController::mainAction"},"request_uri":"https://dev.XXX.de/contao","method":"GET"} []
[2020-05-08 15:49:43] request.INFO: Matched route "contao_install". {"route":"contao_install","route_parameters":{"_route":"contao_install","_scope":"backend","_token_check":true,"_controller":"Contao\\InstallationBundle\\Controller\\InstallationController::installAction"},"request_uri":"https://dev.XXX.de/contao/install","method":"GET"} []
[2020-05-08 15:52:35] request.INFO: Matched route "contao_install". {"route":"contao_install","route_parameters":{"_route":"contao_install","_scope":"backend","_token_check":true,"_controller":"Contao\\InstallationBundle\\Controller\\InstallationController::installAction"},"request_uri":"https://dev.XXX.de/contao/install","method":"GET"} []
[2020-05-08 16:07:17] request.INFO: Matched route "contao_install". {"route":"contao_install","route_parameters":{"_route":"contao_install","_scope":"backend","_token_check":true,"_controller":"Contao\\InstallationBundle\\Controller\\InstallationController::installAction"},"request_uri":"https://dev.XXX.de/contao/install","method":"GET"} []

Prod-Log:

[2020-05-08 15:57:22] request.CRITICAL: Uncaught PHP Exception Symfony\Component\HttpKernel\Exception\ServiceUnavailableHttpException: "Service Temporarily Unavailable" at /www/htdocs/w0125400/pdr-website/contao4/vendor/contao/core-bundle/src/EventListener/ExceptionConverterListener.php line 100 {"exception":"[object] (Symfony\\Component\\HttpKernel\\Exception\\ServiceUnavailableHttpException(code: 0): Service Temporarily Unavailable at /www/htdocs/xxx/xxx/contao4/vendor/contao/core-bundle/src/EventListener/ExceptionConverterListener.php:100, Lexik\\Bundle\\MaintenanceBundle\\Exception\\ServiceUnavailableException(code: 0): Service Temporarily Unavailable at /www/htdocs/xxx/xxx/contao4/vendor/lexik/maintenance-bundle/Listener/MaintenanceListener.php:206)"} []
[2020-05-08 16:06:50] request.INFO: Matched route "tl_page.44". {"route":"tl_page.44","route_parameters":{"_token_check":true,"_controller":"Contao\\FrontendIndex::renderPage","_scope":"frontend","_locale":"de","pageModel":"[object] (Contao\\PageModel: {})","parameters":"/salut-aus-villebon-und-paris","_route":"tl_page.44"},"request_uri":"https://dev.XXX.de/news/xxx.html","method":"GET"} []
[2020-05-08 16:06:50] security.INFO: Populated the TokenStorage with an anonymous Token. [] []
[2020-05-08 16:06:50] request.CRITICAL: Uncaught PHP Exception Symfony\Component\HttpKernel\Exception\ServiceUnavailableHttpException: "Service Temporarily Unavailable" at /www/htdocs/xxx/xxx/contao4/vendor/contao/core-bundle/src/EventListener/ExceptionConverterListener.php line 100 {"exception":"[object] (Symfony\\Component\\HttpKernel\\Exception\\ServiceUnavailableHttpException(code: 0): Service Temporarily Unavailable at /www/htdocs/xxx/xxx/contao4/vendor/contao/core-bundle/src/EventListener/ExceptionConverterListener.php:100, Lexik\\Bundle\\MaintenanceBundle\\Exception\\ServiceUnavailableException(code: 0): Service Temporarily Unavailable at /www/htdocs/xxx/xxx/contao4/vendor/lexik/maintenance-bundle/Listener/MaintenanceListener.php:206)"} []

Ein Versuch mittels app_dev Zugriff zu erlangen scheitert auch:

php vendor/bin/contao-console contao:install-web-dir --user=xxx--password=xxx
PHP Parse error:  syntax error, unexpected '?' in /www/htdocs/xxx/xxx/contao4/vendor/contao/manager-bundle/src/HttpKernel/ContaoKernel.php on line 150

Zur Ergänzung die composer.json

{
    "type": "project",
    "require": {
        "bugbuster/contao-mobiledetection-bundle": "^1.0",
        "contao/calendar-bundle": "4.9.*",
        "contao/conflicts": "*@dev",
        "contao/listing-bundle": "4.9.*",
        "contao/manager-bundle": "4.9.*",
        "contao/news-bundle": "4.9.*",
        "craffft/css-style-selector-bundle": "^1.6",
        "delahaye/dlh_googlemaps": "^2.4",
        "dklemmt/contao_dk_mmenu": "^3.1",
        "do-while/contao-ce_be_remarks": "^1.0",
        "friends-of-contao/contao-memberlist": "^2.0",
        "jrgregory/m17-sticky-backend-footer": "^2.0",
        "madeyourday/contao-rocksolid-columns": "^2.0",
        "numero2/contao-marketing-suite": "^1.0",
        "terminal42/contao-easy_themes": "^2.2",
        "w3scout/contao-dompdf-bundle": "^1.0"
    },
    "extra": {
        "contao-component-dir": "assets"
    },
    "scripts": {
        "post-install-cmd": [
            "Contao\\ManagerBundle\\Composer\\ScriptHandler::initializeApplication"
        ],
        "post-update-cmd": [
            "Contao\\ManagerBundle\\Composer\\ScriptHandler::initializeApplication"
        ]
    }
}

[Spooky]

Ein Versuch mittels app_dev Zugriff zu erlangen scheitert auch:

php vendor/bin/contao-console contao:install-web-dir --user=xxx--password=xxx
PHP Parse error:  syntax error, unexpected '?' in /www/htdocs/xxx/xxx/contao4/vendor/contao/manager-bundle/src/HttpKernel/ContaoKernel.php on line 150

Der Fehler tritt vermutlich auf, weil du die Contao Konsole mit der falschen PHP Version aufgerufen hast. Darüberhinaus ist das nicht die richtige Variante, wie du den Debug-Modus aktivierst. Siehe https://docs.contao.org/manual/de/sy...4-8-und-hoeher

[moron]

Danke für den Hinweis, Spooky.

Mittlerweile läuft das ganz wieder - keine Ahnung warum...

Auffällig war aber immer noch, dass die Seitenstruktur nicht sofort, sondern erst nach 2-3 Reloads geladen wurde. Dies konnte ich aber scheinbar mit einem "php_value memory_limit 1G" in der htaccess lösen. Denn im Debugger sind die angezeigten Peak RAM doch deutlich höher als die bisher verfügbaren 256MB.

Der Whitescreen scheint aber nichts Neues in Contao >=4.8 zu sein:
https://github.com/contao/contao/issues/1245
https://github.com/contao/contao/issues/962

Im Dev-Log gibt es aber trotzdem noch einen Eintrag beim Aufruf der Seitenstruktur:

[2020-05-09 13:17:58] request.INFO: Matched route "contao_backend". {"route":"contao_backend","route_parameters":{"_route":"contao_backend","_scope":"backend","_token_check":true,"_controller":"Contao\\CoreBundle\\Controller\\BackendController::mainAction"},"request_uri":"https://dev.xxx.de/contao?do=page&ref=G6RL_JZH","method":"GET"} []
[2020-05-09 13:17:58] security.DEBUG: Read existing security token from the session. {"key":"_security_contao_backend","token_class":"Symfony\\Component\\Security\\Core\\Authentication\\Token\\UsernamePasswordToken"} []
[2020-05-09 13:17:58] security.DEBUG: User was reloaded from a user provider. {"provider":"Contao\\CoreBundle\\Security\\User\\ContaoUserProvider","username":"xxx"} []
[2020-05-09 13:18:00] security.DEBUG: Stored the security token in the session. {"key":"_security_contao_backend"} []
[2020-05-09 13:18:00] app.DEBUG: Executing cron job "Contao\CoreBundle\Cron\LegacyCron::onMinutely" [] []
[2020-05-09 13:18:00] request.INFO: Matched route "_wdt". {"route":"_wdt","route_parameters":{"_route":"_wdt","_controller":"web_profiler.controller.profiler::toolbarAction","token":"48686a"},"request_uri":"https://dev.xxx.de/_wdt/48686a","method":"GET"} []