view bootstrap

hi
everybody

I installed view bootstrap!

I get this error : Notice: Undefined index: classes in template_preprocess_views_bootstrap_media_object() (line 160 of modules/contrib/views_bootstrap/views_bootstrap.theme.inc).

template_preprocess_views_bootstrap_media_object(Array, 'views_bootstrap_media_object', Array) (Line: 287)
DrupalCoreThemeThemeManager->render(Array, Array) (Line: 437)
DrupalCoreRenderRenderer->doRender(Array) (Line: 450)
DrupalCoreRenderRenderer->doRender(Array, ) (Line: 195)
DrupalCoreRenderRenderer->render(Array) (Line: 490)
DrupalCoreTemplateTwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 114)
__TwigTemplate_532bd15a1ee96b91d410ad8b8f05717c156aa86733c3c964a524ef7b00f7f6db->doDisplay(Array, Array) (Line: 432)
Twig_Template->displayWithErrorHandling(Array, Array) (Line: 403)
Twig_Template->display(Array) (Line: 411)
Twig_Template->render(Array) (Line: 64)
twig_render_template('themes/contrib/bootstrap/templates/views/views-view.html.twig', Array) (Line: 384)
DrupalCoreThemeThemeManager->render(Array, Array) (Line: 437)
DrupalCoreRenderRenderer->doRender(Array) (Line: 450)
DrupalCoreRenderRenderer->doRender(Array, ) (Line: 195)
DrupalCoreRenderRenderer->render(Array) (Line: 490)
DrupalCoreTemplateTwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 85)
__TwigTemplate_9aa0fd34250f48f2578dc7652c621a64b239de16828348600f0f870d42cc1d72->block_content(Array, Array) (Line: 215)
Twig_Template->displayBlock('content', Array, Array) (Line: 73)
__TwigTemplate_9aa0fd34250f48f2578dc7652c621a64b239de16828348600f0f870d42cc1d72->doDisplay(Array, Array) (Line: 432)
Twig_Template->displayWithErrorHandling(Array, Array) (Line: 403)
Twig_Template->display(Array) (Line: 411)
Twig_Template->render(Array) (Line: 64)
twig_render_template('themes/thzoodo/templates/block/block.html.twig', Array) (Line: 384)
DrupalCoreThemeThemeManager->render('block', Array) (Line: 437)
DrupalCoreRenderRenderer->doRender(Array) (Line: 450)
DrupalCoreRenderRenderer->doRender(Array, ) (Line: 195)
DrupalCoreRenderRenderer->render(Array) (Line: 490)
DrupalCoreTemplateTwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 343)
__TwigTemplate_b6a84a4698bb8d3c0d85183c1946a81281cdbd3929fc4f80fef38ea2c7deee21->block_zoneslide(Array, Array) (Line: 215)
Twig_Template->displayBlock('zoneslide', Array, Array) (Line: 312)
__TwigTemplate_b6a84a4698bb8d3c0d85183c1946a81281cdbd3929fc4f80fef38ea2c7deee21->block_Zslide(Array, Array) (Line: 215)
Twig_Template->displayBlock('Zslide', Array, Array) (Line: 101)
__TwigTemplate_b6a84a4698bb8d3c0d85183c1946a81281cdbd3929fc4f80fef38ea2c7deee21->doDisplay(Array, Array) (Line: 432)
Twig_Template->displayWithErrorHandling(Array, Array) (Line: 403)
Twig_Template->display(Array) (Line: 411)
Twig_Template->render(Array) (Line: 64)
twig_render_template('themes/thzoodo/templates/page.html.twig', Array) (Line: 384)
DrupalCoreThemeThemeManager->render('page', Array) (Line: 437)
DrupalCoreRenderRenderer->doRender(Array, ) (Line: 195)
DrupalCoreRenderRenderer->render(Array) (Line: 490)
DrupalCoreTemplateTwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 90)
__TwigTemplate_82b60bdb95c20bda72b88d202a2d0361ac23ae84e1e4d34964676aa2766b896a->doDisplay(Array, Array) (Line: 432)
Twig_Template->displayWithErrorHandling(Array, Array) (Line: 403)
Twig_Template->display(Array) (Line: 411)
Twig_Template->render(Array) (Line: 64)
twig_render_template('themes/thzoodo/templates/html.html.twig', Array) (Line: 384)
DrupalCoreThemeThemeManager->render('html', Array) (Line: 437)
DrupalCoreRenderRenderer->doRender(Array, ) (Line: 195)
DrupalCoreRenderRenderer->render(Array) (Line: 147)
DrupalCoreRenderMainContentHtmlRenderer->DrupalCoreRenderMainContent{closure}() (Line: 582)
DrupalCoreRenderRenderer->executeInRenderContext(Object, Object) (Line: 148)
DrupalCoreRenderMainContentHtmlRenderer->renderResponse(Array, Object, Object) (Line: 90)
DrupalCoreEventSubscriberMainContentViewSubscriber->onViewRenderArray(Object, 'kernel.view', Object) (Line: 108)
DrupalComponentEventDispatcherContainerAwareEventDispatcher->dispatch('kernel.view', Object) (Line: 158)
SymfonyComponentHttpKernelHttpKernel->handleRaw(Object, 1) (Line: 68)
SymfonyComponentHttpKernelHttpKernel->handle(Object, 1, 1) (Line: 57)
DrupalCoreStackMiddlewareSession->handle(Object, 1, 1) (Line: 47)
DrupalCoreStackMiddlewareKernelPreHandle->handle(Object, 1, 1) (Line: 99)
Drupalpage_cacheStackMiddlewarePageCache->pass(Object, 1, 1) (Line: 78)
Drupalpage_cacheStackMiddlewarePageCache->handle(Object, 1, 1) (Line: 47)
DrupalCoreStackMiddlewareReverseProxyMiddleware->handle(Object, 1, 1) (Line: 50)
DrupalCoreStackMiddlewareNegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
StackStackedHttpKernel->handle(Object, 1, 1) (Line: 657)
DrupalCoreDrupalKernel->handle(Object) (Line: 19)

someone can help me to fix this problem

Drupal version: 


Source: https://www.drupal.org/taxonomy/term/22/feed