I am getting the following error when I am trying to edit or add any image style.
Due to the following I think it has some thing to do with cloudinary module.
/home/ab64209/public_html/d8/core/modules/image/image.admin.inc(51): Drupal\image\Entity\ImageStyle->buildUri('cloudinary://dr...')
So I uninstalled that module also removed all the image styles and tried to add a new image style again but same errors
[28-Aug-2018 21:07:41 Asia/Dubai] Error: Class name must be a valid object or a string in /home/ab64209/public_html/d8/core/modules/image/src/Entity/ImageStyle.php on line 176 #0 /home/ab64209/public_html/d8/core/modules/image/image.admin.inc(51): Drupal\image\Entity\ImageStyle->buildUri('cloudinary://dr...')
#1 /home/ab64209/public_html/d8/core/lib/Drupal/Core/Theme/ThemeManager.php(287): template_preprocess_image_style_preview(Array, 'image_style_pre...', Array)
#2 /home/ab64209/public_html/d8/core/lib/Drupal/Core/Render/Renderer.php(437): Drupal\Core\Theme\ThemeManager->render('image_style_pre...', Array)
#3 /home/ab64209/public_html/d8/core/lib/Drupal/Core/Render/Renderer.php(195): Drupal\Core\Render\Renderer->doRender(Array, false)
#4 /home/ab64209/public_html/d8/core/modules/image/src/Form/ImageStyleEditForm.php(64): Drupal\Core\Render\Renderer->render(Array)
#5 /home/ab64209/public_html/d8/core/lib/Drupal/Core/Entity/EntityForm.php(117): Drupal\image\Form\ImageStyleEditForm->form(Array, Object(Drupal\Core\Form\FormState))
#6 [internal function]: Drupal\Core\Entity\EntityForm->buildForm(Array, Object(Drupal\Core\Form\FormState))
#7 /home/ab64209/public_html/d8/core/lib/Drupal/Core/Form/FormBuilder.php(518): call_user_func_array(Array, Array)
#8 /home/ab64209/public_html/d8/core/lib/Drupal/Core/Form/FormBuilder.php(275): Drupal\Core\Form\FormBuilder->retrieveForm('image_style_edi...', Object(Drupal\Core\Form\FormState))
#9 /home/ab64209/public_html/d8/core/lib/Drupal/Core/Controller/FormController.php(74): Drupal\Core\Form\FormBuilder->buildForm('image_style_edi...', Object(Drupal\Core\Form\FormState))
#10 [internal function]: Drupal\Core\Controller\FormController->getContentResult(Object(Symfony\Component\HttpFoundation\Request), Object(Drupal\Core\Routing\RouteMatch))
#11 /home/ab64209/public_html/d8/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array(Array, Array)
#12 /home/ab64209/public_html/d8/core/lib/Drupal/Core/Render/Renderer.php(582): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#13 /home/ab64209/public_html/d8/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(124): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure))
#14 /home/ab64209/public_html/d8/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array)
#15 /home/ab64209/public_html/d8/vendor/symfony/http-kernel/HttpKernel.php(151): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#16 /home/ab64209/public_html/d8/vendor/symfony/http-kernel/HttpKernel.php(68): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1)
#17 /home/ab64209/public_html/d8/core/lib/Drupal/Core/StackMiddleware/Session.php(57): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#18 /home/ab64209/public_html/d8/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#19 /home/ab64209/public_html/d8/core/modules/page_cache/src/StackMiddleware/PageCache.php(99): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#20 /home/ab64209/public_html/d8/core/modules/page_cache/src/StackMiddleware/PageCache.php(78): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#21 /home/ab64209/public_html/d8/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#22 /home/ab64209/public_html/d8/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(52): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#23 /home/ab64209/public_html/d8/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#24 /home/ab64209/public_html/d8/core/lib/Drupal/Core/DrupalKernel.php(666): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#25 /home/ab64209/public_html/d8/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request))
#26 {main}
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