Stash\Exception\InvalidArgumentException thrown with message "Invalid or Empty Node passed to getItem constructor."

Stacktrace:
#49 Stash\Exception\InvalidArgumentException in /path/to/concrete/vendor/tedivm/stash/src/Stash/Pool.php:136
#48 Stash\Pool:getItem in /path/to/concrete/src/Cache/Cache.php:178
#47 Concrete\Core\Cache\Cache:getItem in /path/to/concrete/src/Page/Collection/Version/Version.php:251
#46 Concrete\Core\Page\Collection\Version\Version:get in /path/to/concrete/src/Workflow/Request/ApprovePageRequest.php:182
#45 Concrete\Core\Workflow\Request\ApprovePageRequest:getRequesterComment in /path/to/concrete/src/Workflow/BasicWorkflow.php:45
#44 Concrete\Core\Workflow\BasicWorkflow:getWorkflowProgressCurrentComment in /path/to/concrete/src/Notification/View/WorkflowProgressListView.php:72
#43 Concrete\Core\Notification\View\WorkflowProgressListView:getInitiatorComment in /path/to/concrete/src/Notification/View/StandardListView.php:83
#42 Concrete\Core\Notification\View\StandardListView:renderInitiatorCommentDescription in /path/to/concrete/elements/notification/list/details.php:21
#41 include in /path/to/concrete/src/View/AbstractView.php:180
#40 Concrete\Core\View\AbstractView:renderViewContents in /path/to/concrete/src/View/AbstractView.php:164
#39 Concrete\Core\View\AbstractView:render in /path/to/concrete/src/Controller/ElementController.php:99
#38 Concrete\Core\Controller\ElementController:render in /path/to/concrete/src/Notification/View/StandardListView.php:34
#37 Concrete\Core\Notification\View\StandardListView:renderDetails in /path/to/concrete/blocks/desktop_waiting_for_me/view.php:54
#36 include in /path/to/concrete/src/Block/View/BlockView.php:267
#35 Concrete\Core\Block\View\BlockView:renderViewContents in /path/to/concrete/src/View/AbstractView.php:164
#34 Concrete\Core\View\AbstractView:render in /path/to/concrete/src/Area/Area.php:857
#33 Concrete\Core\Area\Area:display in /path/to/concrete/src/Area/Layout/Column.php:210
#32 Concrete\Core\Area\Layout\Column:display in /path/to/concrete/src/Area/Layout/Column.php:168
#31 Concrete\Core\Area\Layout\Column:getContents in /path/to/concrete/src/Area/Layout/ThemeGridColumn.php:153
#30 Concrete\Core\Area\Layout\ThemeGridColumn:getColumnHtmlObject in /path/to/concrete/blocks/core_area_layout/view.php:27
#29 include in /path/to/concrete/src/Block/View/BlockView.php:267
#28 Concrete\Core\Block\View\BlockView:renderViewContents in /path/to/concrete/src/View/AbstractView.php:164
#27 Concrete\Core\View\AbstractView:render in /path/to/concrete/src/Area/Area.php:857
#26 Concrete\Core\Area\Area:display in /path/to/concrete/themes/dashboard/desktop.php:14
#25 include in /path/to/concrete/src/View/View.php:339
#24 Concrete\Core\View\View:renderTemplate in /path/to/concrete/src/View/View.php:301
#23 Concrete\Core\View\View:renderViewContents in /path/to/concrete/src/View/AbstractView.php:164
#22 Concrete\Core\View\AbstractView:render in /path/to/concrete/src/Http/ResponseFactory.php:147
#21 Concrete\Core\Http\ResponseFactory:view in /path/to/concrete/src/Http/ResponseFactory.php:220
#20 Concrete\Core\Http\ResponseFactory:controller in /path/to/concrete/src/Http/ResponseFactory.php:372
#19 Concrete\Core\Http\ResponseFactory:collection in /path/to/concrete/src/Http/DefaultDispatcher.php:132
#18 Concrete\Core\Http\DefaultDispatcher:handleDispatch in /path/to/concrete/src/Http/DefaultDispatcher.php:60
#17 Concrete\Core\Http\DefaultDispatcher:dispatch in /path/to/concrete/src/Http/Middleware/DispatcherDelegate.php:39
#16 Concrete\Core\Http\Middleware\DispatcherDelegate:next in /path/to/concrete/src/Http/Middleware/FrameOptionsMiddleware.php:39
#15 Concrete\Core\Http\Middleware\FrameOptionsMiddleware:process in /path/to/concrete/src/Http/Middleware/MiddlewareDelegate.php:50
#14 Concrete\Core\Http\Middleware\MiddlewareDelegate:next in /path/to/concrete/src/Http/Middleware/StrictTransportSecurityMiddleware.php:36
#13 Concrete\Core\Http\Middleware\StrictTransportSecurityMiddleware:process in /path/to/concrete/src/Http/Middleware/MiddlewareDelegate.php:50
#12 Concrete\Core\Http\Middleware\MiddlewareDelegate:next in /path/to/concrete/src/Http/Middleware/ContentSecurityPolicyMiddleware.php:36
#11 Concrete\Core\Http\Middleware\ContentSecurityPolicyMiddleware:process in /path/to/concrete/src/Http/Middleware/MiddlewareDelegate.php:50
#10 Concrete\Core\Http\Middleware\MiddlewareDelegate:next in /path/to/concrete/src/Http/Middleware/CookieMiddleware.php:35
#9 Concrete\Core\Http\Middleware\CookieMiddleware:process in /path/to/concrete/src/Http/Middleware/MiddlewareDelegate.php:50
#8 Concrete\Core\Http\Middleware\MiddlewareDelegate:next in /path/to/concrete/src/Http/Middleware/ApplicationMiddleware.php:29
#7 Concrete\Core\Http\Middleware\ApplicationMiddleware:process in /path/to/concrete/src/Http/Middleware/MiddlewareDelegate.php:50
#6 Concrete\Core\Http\Middleware\MiddlewareDelegate:next in /path/to/concrete/src/Http/Middleware/MiddlewareStack.php:86
#5 Concrete\Core\Http\Middleware\MiddlewareStack:process in /path/to/concrete/src/Http/DefaultServer.php:85
#4 Concrete\Core\Http\DefaultServer:handleRequest in /path/to/concrete/src/Foundation/Runtime/Run/DefaultRunner.php:128
#3 Concrete\Core\Foundation\Runtime\Run\DefaultRunner:run in /path/to/concrete/src/Foundation/Runtime/DefaultRuntime.php:102
#2 Concrete\Core\Foundation\Runtime\DefaultRuntime:run in /path/to/concrete/dispatcher.php:45
#1 require in /path/to/index.php:2