admin toolbar tools error

Problem/Motivation

In Drupal 11.2.7, enabling module "admin_toolbar_tools" version 3.6.2 causes my site to produce the following error:

The website encountered an unexpected error. Try again later.

TypeError: Unsupported operand types: int + string in Drupal\admin_toolbar_tools\Plugin\Derivative\ExtraLinks->getDerivativeDefinitions() (line 749 of modules/admin_toolbar/admin_toolbar_tools/src/Plugin/Derivative/ExtraLinks.php).
Drupal\Component\Plugin\Discovery\DerivativeDiscoveryDecorator->getDerivatives(Array) (Line: 87)
Drupal\Component\Plugin\Discovery\DerivativeDiscoveryDecorator->getDefinitions() (Line: 127)
Drupal\Core\Menu\MenuLinkManager->getDefinitions() (Line: 152)
Drupal\Core\Menu\MenuLinkManager->rebuild() (Line: 62)
Drupal\Core\EventSubscriber\MenuRouterRebuildSubscriber->menuLinksRebuild() (Line: 50)
Drupal\Core\EventSubscriber\MenuRouterRebuildSubscriber->onRouterRebuild(Object, 'routing.route_finished', Object) (Line: 246)
Symfony\Component\EventDispatcher\EventDispatcher::Symfony\Component\EventDispatcher\{closure}(Object, 'routing.route_finished', Object) (Line: 206)
Symfony\Component\EventDispatcher\EventDispatcher->callListeners(Array, 'routing.route_finished', Object) (Line: 56)
Symfony\Component\EventDispatcher\EventDispatcher->dispatch(Object, 'routing.route_finished') (Line: 209)
Drupal\Core\Routing\RouteBuilder->rebuild() (Line: 83)
Drupal\Core\ProxyClass\Routing\RouteBuilder->rebuild() (Line: 246)
Drupal\Core\Extension\ModuleInstaller->install(Array, 1) (Line: 83)
Drupal\Core\ProxyClass\Extension\ModuleInstaller->install(Array) (Line: 508)
Drupal\system\Form\ModulesListForm->submitForm(Array, Object)
call_user_func_array(Array, Array) (Line: 105)
Drupal\Core\Form\FormSubmitter->executeSubmitHandlers(Array, Object) (Line: 43)
Drupal\Core\Form\FormSubmitter->doSubmitForm(Array, Object) (Line: 589)
Drupal\Core\Form\FormBuilder->processForm('system_modules', Array, Object) (Line: 321)
Drupal\Core\Form\FormBuilder->buildForm(Object, Object) (Line: 73)
Drupal\Core\Controller\FormController->getContentResult(Object, Object)
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 627)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 121)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 183)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 53)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 32)
Drupal\big_pipe\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 116)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 90)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 53)
Drupal\Core\StackMiddleware\AjaxPageState->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 715)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

Unsure what to do, so I just uninstall this module as it seems not to work.

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes