This critical error occurs when syncing (Differentiated synchronization). Additionally before the error there is a long list of warning messages which makes the log file over 100MB.
...
[2025-06-03T14:02:28.113463+02:00] php.WARNING: Warning: Undefined array key "pid" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"pid\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Controller\\Diff.php:794)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.113999+02:00] php.WARNING: Warning: Undefined array key "pid" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"pid\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Controller\\Diff.php:794)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.114477+02:00] php.WARNING: Warning: Undefined array key "pid" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"pid\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Controller\\Diff.php:794)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.115013+02:00] php.WARNING: Warning: Undefined array key "pid" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"pid\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Controller\\Diff.php:794)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.115604+02:00] php.WARNING: Warning: Undefined array key "pid" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"pid\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Controller\\Diff.php:794)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.116019+02:00] php.WARNING: Warning: Undefined array key "pid" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"pid\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Controller\\Diff.php:794)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.116571+02:00] php.WARNING: Warning: Undefined array key "pid" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"pid\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Controller\\Diff.php:794)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.117583+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Controller\\Diff.php:861)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.119255+02:00] php.WARNING: Warning: Attempt to read property "base" on null {"exception":"[object] (ErrorException(code: 0): Warning: Attempt to read property \"base\" on null at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:44)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.119331+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:51)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.119487+02:00] php.WARNING: Warning: Undefined array key "blocked" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"blocked\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:59)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.119540+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:110)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.119750+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.119811+02:00] php.WARNING: Warning: Undefined array key "blocked" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"blocked\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:59)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.119910+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.119966+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120015+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120064+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120112+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120160+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120223+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120273+02:00] php.WARNING: Warning: Undefined array key "blocked" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"blocked\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:59)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120320+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:110)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120433+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120486+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120541+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120626+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120680+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120729+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120778+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:139)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120844+02:00] php.WARNING: Warning: Attempt to read property "base" on null {"exception":"[object] (ErrorException(code: 0): Warning: Attempt to read property \"base\" on null at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:171)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.120887+02:00] php.WARNING: Warning: Undefined array key "show_differences" {"exception":"[object] (ErrorException(code: 0): Warning: Undefined array key \"show_differences\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:178)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:28.123100+02:00] request.CRITICAL: Uncaught PHP Exception Error: "Undefined constant "VERSION"" at be_syncCtoPro_popup_overview.html5 line 189 {"exception":"[object] (Error(code: 0): Undefined constant \"VERSION\" at D:\\vhost\\php8.2\\contao-lte\\vendor\\menatwork\\syncctopro\\src\\Resources\\contao\\templates\\be_syncCtoPro_popup_overview.html5:189)"} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
[2025-06-03T14:02:38.942856+02:00] messenger.INFO: Stopping worker. {"transport_names":["contao_prio_high"]} {"request_uri":"http://contao-lte.local/syncCto/pro/databasePopup?direction=To&id=1&language=de&view=overview","request_method":"GET"}
Hi,
Contao 5.3
PHP 8.2
This critical error occurs when syncing (Differentiated synchronization). Additionally before the error there is a long list of warning messages which makes the log file over 100MB.
Here are the last rows of my log file: