getting error in drupal 8 module

Deprecated function: Non-static method Drupal\weight\Plugin\Field\FieldWidget\WeightSelectorWidget::rangeOptions() should not be called statically, assuming $this from incompatible context in Drupal\weight\Plugin\views\field\WeightSelector->viewsForm() (line 66 of /home/backup/d8.xx.com/modules/contrib/weight/src/Plugin/views/field/WeightSelector.php) #0 /home/backup/d8.xxx.com/core/includes/bootstrap.inc(566): _drupal_error_handler_real(8192, 'Non-static meth...', '/home/backup/d8...', 66, Array) #1 /home/backup/xxx.com/modules/contrib/weight/src/Plugin/views/field/WeightSelector.php(66): _drupal_error_handler(8192, 'Non-static meth...', '/home/backup/d8...', 66, Array) #2 /home/backup/d8.xxx.com/core/modules/views/src/Form/ViewsFormMainForm.php(60): Drupal\weight\Plugin\views\field\WeightSelector->viewsForm(Array, Object(Drupal\Core\Form\FormState)) #3 /home/backup/d8.xx.com/core/modules/views/src/Form/ViewsForm.php(169): Drupal\views\Form\ViewsFormMainForm->buildForm(Array, Object(Drupal\Core\Form\FormState), Object(Drupal\webprofiler\Views\TraceableViewExecutable), Array) #4 [internal function]: Drupal\views\Form\ViewsForm->buildForm(Array, Object(Drupal\Core\Form\FormState), Object(Drupal\webprofiler\Views\TraceableViewExecutable), Array) #5 /home/backup/d8.xxx.com/core/lib/Drupal/Core/Form/FormBuilder.php(514): call_user_func_array(Array, Array) #6 /home/backup/d8.xxx.com/core/lib/Drupal/Core/Form/FormBuilder.php(271): Drupal\Core\Form\FormBuilder->retrieveForm('views_form_erro...', Object(Drupal\Core\Form\FormState)) #7 /home/backup/d8.xxxx.com/core/lib/Drupal/Core/Form/FormBuilder.php(212): Drupal\Core\Form\FormBuilder->buildForm(Object(Drupal\views\Form\ViewsForm), Object(Drupal\Core\Form\FormState)) #8 /home/backup/d8.xxx.com/core/modules/views/src/Plugin/views/display/DisplayPluginBase.php(2207): Drupal\Core\Form\FormBuilder->getForm(Object(Drupal\views\Form\ViewsForm), Object(Drupal\webprofiler\Views\TraceableViewExecutable), Array) #9 [internal function]: Drupal\views\Plugin\views\display\DisplayPluginBase->elementPreRender(Array) #10 /home/backup/d8..com/core/lib/Drupal/Core/Render/Renderer.php(378): call_user_func(Array, Array) #11 /home/backup/d8..com/core/lib/Drupal/Core/Render/Renderer.php(450): Drupal\Core\Render\Renderer->doRender(Array) #12 /home/backup/d8..com/core/lib/Drupal/Core/Render/Renderer.php(195): Drupal\Core\Render\Renderer->doRender(Array, false) #13 /home/backup/d8i.com/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(226): Drupal\Core\Render\Renderer->render(Array, false) #14 /home/backup/d8.com/core/lib/Drupal/Core/Render/Renderer.php(582): Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() #15 /home/backup/d8..com/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(227): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure)) #16 /home/backup/d8.com/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(117): Drupal\Core\Render\MainContent\HtmlRenderer->prepare(Array, Object(Symfony\Component\HttpFoundation\Request), Object(Drupal\Core\Routing\CurrentRouteMatch)) #17 /home/backup/d8..com/core/lib/Drupal/Core/EventSubscriber/MainContentViewSubscriber.php(90): Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse(Array, Object(Symfony\Component\HttpFoundation\Request), Object(Drupal\Core\Routing\CurrentRouteMatch)) #18 /home/backup/d8..com/modules/contrib/devel/webprofiler/src/EventDispatcher/TraceableEventDispatcher.php(76): Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object(Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent), 'kernel.view', Object(Drupal\webprofiler\EventDispatcher\TraceableEventDispatcher)) #19 /home/backup/d8.com/vendor/symfony/http-kernel/HttpKernel.php(158): Drupal\webprofiler\EventDispatcher\TraceableEventDispatcher->dispatch('kernel.view', Object(Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent)) #20 /home/backup/d8i.com/vendor/symfony/http-kernel/HttpKernel.php(68): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1) #21 /home/backup/d8.com/core/lib/Drupal/Core/StackMiddleware/Session.php(57): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #22 /home/backup/d8.om/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #23 /home/backup/d8.com/core/modules/page_cache/src/StackMiddleware/PageCache.php(99): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #24 /home/backup/d8.om/core/modules/page_cache/src/StackMiddleware/PageCache.php(78): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true) #25 /home/backup/d8.com/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #26 /home/backup/d8.com/modules/contrib/devel/webprofiler/src/StackMiddleware/WebprofilerMiddleware.php(38): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #27 /home/backup/d8..com/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(50): Drupal\webprofiler\StackMiddleware\WebprofilerMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #28 /home/backup/d8.com/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #29 /home/backup/d8..com/core/lib/Drupal/Core/DrupalKernel.php(657): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #30 /home/backup/d8.com/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #31 {main}.