Kopie einer Seite: im Debug-Modus geht nichts mehr

[Lufine]

Ich habe eine funktionierende Contao-Seite samt alle Modulen, Einstellungen, Files, Templates etc. kopiert, aktualisiert und habe jetzt große Probleme mit dem Debug-Modus. Sobald ich den im Backend aktiviere geht nichts mehr - weder im Front- noch im Backend. Die Seiten laden sich einen Wolf ...

Im dev.log finde ich folgende Einträge:

[2021-12-21T14:09:34.167930+01:00] app.DEBUG: Router Symfony\Bundle\FrameworkBundle\Routing\Router was not able to match, message "" [] []
[2021-12-21T14:09:34.233231+01:00] request.INFO: Matched route "tl_page.4.root". {"route":"tl_page.4.root","route_parameters":{"_token_check":true,"_controller":"Contao\\FrontendIndex::renderPage","_scope":"frontend","_locale":"de","_format":"html","_canonical_route":"tl_page.4","parameters":"","pageModel":{"Contao\\PageModel":[]},"_route":"tl_page.4.root","_route_object":{"Symfony\\Component\\Routing\\Route":[]}},"request_uri":"https://contao2022.omega-immobilien.de/preview.php/","method":"GET"} []
[2021-12-21T14:09:34.274616+01:00] security.INFO: Populated the TokenStorage with an anonymous Token. [] []
[2021-12-21T14:09:34.275110+01:00] app.DEBUG: Router Symfony\Bundle\FrameworkBundle\Routing\Router was not able to match, message "" [] []
[2021-12-21T14:09:34.519369+01:00] app.DEBUG: Router Symfony\Bundle\FrameworkBundle\Routing\Router was unable to generate route. Reason: 'Route 'cmf_routing_object' not found': Unable to generate a URL for the named route "cmf_routing_object" as such route does not exist. [] []
[2021-12-21T14:09:34.520297+01:00] app.DEBUG: Router Symfony\Bundle\FrameworkBundle\Routing\Router was unable to generate route. Reason: 'Route 'cmf_routing_object' not found': Unable to generate a URL for the named route "cmf_routing_object" as such route does not exist. [] []
[2021-12-21T14:09:34.524765+01:00] request.CRITICAL: Uncaught PHP Exception ErrorException: "Warning: Undefined property: Ma3xl3\EasyFaviconBundle\EasyFavicon::$Environment" at /homepages/13/d33193387/htdocs/contao2022/vendor/ma3xl3/contao-easy-favicon/src/Resources/contao/classes/EasyFavicon.php line 73 {"exception":"[object] (ErrorException(code: 0): Warning: Undefined property: Ma3xl3\\EasyFaviconBundle\\EasyFavicon::$Environment at /homepages/13/d33193387/htdocs/contao2022/vendor/ma3xl3/contao-easy-favicon/src/Resources/contao/classes/EasyFavicon.php:73)"} []
[2021-12-21T14:09:34.728142+01:00] app.DEBUG: Executing cron job "Contao\CoreBundle\Cron\LegacyCron::onMinutely" [] []
[2021-12-21T14:09:35.015271+01:00] request.INFO: Matched route "_wdt". {"route":"_wdt","route_parameters":{"_route":"_wdt","_controller":"web_profiler.controller.profiler::toolbarAction","token":"cdf8fb"},"request_uri":"https://contao2022.xxx.de/preview.php/_wdt/cdf8fb","method":"GET"} []
[2021-12-21T14:09:35.355090+01:00] request.INFO: Matched route "_wdt". {"route":"_wdt","route_parameters":{"_route":"_wdt","_controller":"web_profiler.controller.profiler::toolbarAction","token":"cdf8fb"},"request_uri":"https://contao2022.xxx.de/_wdt/cdf8fb","method":"GET"} []
[2021-12-21T14:09:35.367236+01:00] request.CRITICAL: Uncaught PHP Exception ErrorException: "Notice: SessionHandler::gc(): ps_files_cleanup_dir: opendir(/tmp/.priv) failed: Permission denied (13)" at /homepages/13/d33193387/htdocs/contao2022/vendor/symfony/http-foundation/Session/Storage/Handler/StrictSessionHandler.php line 106 {"exception":"[object] (ErrorException(code: 0): Notice: SessionHandler::gc(): ps_files_cleanup_dir: opendir(/tmp/.priv) failed: Permission denied (13) at /homepages/13/d33193387/htdocs/contao2022/vendor/symfony/http-foundation/Session/Storage/Handler/StrictSessionHandler.php:106)"} []
[2021-12-21T14:10:54.030849+01:00] 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://contao2022.xxx.de/contao?do=page&ref=7-6zsVgx","method":"GET"} []

prod.log vom heutigen Tag ist leer ...

Wenn ich mit Hilfe des Contao Managers den Debug-Modus beende, muss ich ca. 15 Minuten warten, bis die Seite und auch das Backend wieder aufgerufen werden können. Hat jemand eine Idee?