Error on /filter/tips page

When I visit this page /filter/tips it throws this error:

The website encountered an unexpected error. Please try again later.
TypeError: Argument 2 passed to Drupal\Component\Plugin\PluginManagerBase::createInstance() must be of the type array, null given, called in /Applications/XAMPP/xamppfiles/htdocs/complaincity.ct/modules/freelinking/src/Plugin/Filter/Freelinking.php on line 168 in Drupal\Component\Plugin\PluginManagerBase->createInstance() (line 71 of core/lib/Drupal/Component/Plugin/PluginManagerBase.php).
Drupal\Component\Plugin\PluginManagerBase->createInstance('builtin', NULL) (Line: 168)
Drupal\freelinking\Plugin\Filter\Freelinking->tips(1) (Line: 350)
_filter_tips(-1, 1) (Line: 30)
Drupal\filter\Controller\FilterController->filterTips(NULL)
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 574)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 124)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
call_user_func_array(Object, Array) (Line: 144)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 64)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 57)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 99)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 78)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 50)
Drupal\ban\BanMiddleware->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 50)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 656)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)