Yes,
the old admin plugin was 1.10.34
the old grav was 1.7.34
Do you mean the complete logfile with the stack trace?
[2023-09-23 20:57:13] grav.CRITICAL: Trying to access array offset on value of type bool - Trace: #0 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Debugger.php(843): Whoops\Run->handleError(2, 'Trying to acces...', 'D:\Xampp\htdocs...', 100) #1 D:\Xampp\htdocs\Top-it\user\plugins\admin\vendor\p3k\picofeed\lib\PicoFeed\Parser\DateParser.php(100): Grav\Common\Debugger->deprecatedErrorHandler(2, 'Trying to acces...', 'D:\Xampp\htdocs...', 100) #2 D:\Xampp\htdocs\Top-it\user\plugins\admin\vendor\p3k\picofeed\lib\PicoFeed\Parser\DateParser.php(76): PicoFeed\Parser\DateParser->getValidDate('Y-m-d\TH:i:sP', '2022-12-25T12:0...') #3 D:\Xampp\htdocs\Top-it\user\plugins\admin\vendor\p3k\picofeed\lib\PicoFeed\Parser\Atom.php(153): PicoFeed\Parser\DateParser->getDateTime('2022-12-25T12:0...') #4 D:\Xampp\htdocs\Top-it\user\plugins\admin\vendor\p3k\picofeed\lib\PicoFeed\Parser\Parser.php(142): PicoFeed\Parser\Atom->findFeedDate(Object(SimpleXMLElement), Object(PicoFeed\Parser\Feed)) #5 D:\Xampp\htdocs\Top-it\user\plugins\admin\classes\plugin\Admin.php(1812): PicoFeed\Parser\Parser->execute() #6 D:\Xampp\htdocs\Top-it\user\plugins\admin\classes\plugin\AdminController.php(483): Grav\Plugin\Admin\Admin->getFeed(false) #7 D:\Xampp\htdocs\Top-it\user\plugins\admin\classes\plugin\AdminBaseController.php(104): Grav\Plugin\Admin\AdminController->taskGetNewsFeed() #8 D:\Xampp\htdocs\Top-it\user\plugins\admin\admin.php(1008): Grav\Plugin\Admin\AdminBaseController->execute() #9 D:\Xampp\htdocs\Top-it\user\plugins\admin\admin.php(558): Grav\Plugin\AdminPlugin->initializeController('getNewsFeed', Array) #10 D:\Xampp\htdocs\Top-it\vendor\symfony\event-dispatcher\EventDispatcher.php(264): Grav\Plugin\AdminPlugin->onPagesInitialized(Object(RocketTheme\Toolbox\Event\Event), 'onPagesInitiali...', Object(Symfony\Component\EventDispatcher\EventDispatcher)) #11 D:\Xampp\htdocs\Top-it\vendor\symfony\event-dispatcher\EventDispatcher.php(239): Symfony\Component\EventDispatcher\EventDispatcher->doDispatch(Array, 'onPagesInitiali...', Object(RocketTheme\Toolbox\Event\Event)) #12 D:\Xampp\htdocs\Top-it\vendor\symfony\event-dispatcher\EventDispatcher.php(73): Symfony\Component\EventDispatcher\EventDispatcher->callListeners(Array, 'onPagesInitiali...', Object(RocketTheme\Toolbox\Event\Event)) #13 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Grav.php(592): Symfony\Component\EventDispatcher\EventDispatcher->dispatch(Object(RocketTheme\Toolbox\Event\Event), 'onPagesInitiali...') #14 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Processors\PagesProcessor.php(48): Grav\Common\Grav->fireEvent('onPagesInitiali...', Object(RocketTheme\Toolbox\Event\Event)) #15 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(50): Grav\Common\Processors\PagesProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler)) #16 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #17 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Processors\TwigProcessor.php(38): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #18 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(50): Grav\Common\Processors\TwigProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler)) #19 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #20 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Processors\AssetsProcessor.php(39): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #21 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(50): Grav\Common\Processors\AssetsProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler)) #22 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #23 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Processors\SchedulerProcessor.php(40): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #24 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(50): Grav\Common\Processors\SchedulerProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler)) #25 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #26 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Processors\BackupsProcessor.php(39): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #27 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(50): Grav\Common\Processors\BackupsProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler)) #28 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #29 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Processors\TasksProcessor.php(69): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #30 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(50): Grav\Common\Processors\TasksProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler)) #31 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #32 D:\Xampp\htdocs\Top-it\user\plugins\admin\classes\plugin\Router.php(65): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #33 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(50): Grav\Plugin\Admin\Router->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler)) #34 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #35 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Processors\RequestProcessor.php(64): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #36 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(50): Grav\Common\Processors\RequestProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler)) #37 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #38 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Processors\ThemesProcessor.php(38): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #39 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(50): Grav\Common\Processors\ThemesProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler)) #40 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #41 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Processors\PluginsProcessor.php(39): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #42 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(50): Grav\Common\Processors\PluginsProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler)) #43 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #44 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Processors\InitializeProcessor.php(130): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #45 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Debugger.php(546): Grav\Common\Processors\InitializeProcessor::Grav\Common\Processors{closure}() #46 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Processors\InitializeProcessor.php(129): Grav\Common\Debugger->profile(Object(Closure)) #47 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(50): Grav\Common\Processors\InitializeProcessor->process(Object(Nyholm\Psr7\ServerRequest), Object(Grav\Framework\RequestHandler\RequestHandler)) #48 D:\Xampp\htdocs\Top-it\system\src\Grav\Framework\RequestHandler\Traits\RequestHandlerTrait.php(62): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #49 D:\Xampp\htdocs\Top-it\system\src\Grav\Common\Grav.php(307): Grav\Framework\RequestHandler\RequestHandler->handle(Object(Nyholm\Psr7\ServerRequest)) #50 D:\Xampp\htdocs\Top-it\index.php(47): Grav\Common\Grav->process() #51 {main} [] []