unexpected error when editing AN homepage hero block

When clicking the edit button for the "AN homepage hero block" (admin/structure/block/block-content) I get this error: 'The website encountered an unexpected error. Please try again later.'

In the log I find 3 errors containing:

Error: Class 'lsolesen\pel\PelJpeg' not found in Drupal\file_mdm_exif\Plugin\FileMetadata\Exif->getFile() (regel 108 van .../profiles/social/modules/contrib/file_mdm/file_mdm_exif/src/Plugin/FileMetadata/Exif.php) #0 .../profiles/social/modules/contrib/file_mdm/file_mdm_exif/src/Plugin/FileMetadata/Exif.php(127): Drupal\file_mdm_exif\Plugin\FileMetadata\Exif->getFile() #1 .../profiles/social/modules/contrib/file_mdm/src/Plugin/FileMetadata/FileMetadataPluginBase.php(280): Drupal\file_mdm_exif\Plugin\FileMetadata\Exif->doGetMetadataFromFile() #2 .../profiles/social/modules/contrib/file_mdm/src/Plugin/FileMetadata/FileMetadataPluginBase.php(377): Drupal\file_mdm\Plugin\FileMetadata\FileMetadataPluginBase->loadMetadataFromFile() #3 .../profiles/social/modules/contrib/file_mdm/src/FileMetadata.php(183): Drupal\file_mdm\Plugin\FileMetadata\FileMetadataPluginBase->getMetadata('Orientation') #4 .../profiles/social/modules/contrib/image_effects/src/Plugin/ImageEffect/AutoOrientImageEffect.php(151): Drupal\file_mdm\FileMetadata->getMetadata('exif', 'Orientation') #5 .../core/modules/image/src/Entity/ImageStyle.php(334): Drupal\image_effects\Plugin\ImageEffect\AutoOrientImageEffect->transformDimensions(Array, 'public://homepa...') #6 .../core/modules/image/image.module(303): Drupal\image\Entity\ImageStyle->transformDimensions(Array, 'public://homepa...') #7 .../core/lib/Drupal/Core/Theme/ThemeManager.php(287): template_preprocess_image_style(Array, 'image_style', Array) #8 .../core/lib/Drupal/Core/Render/Renderer.php(437): Drupal\Core\Theme\ThemeManager->render('image_style', Array) #9 .../core/lib/Drupal/Core/Render/Renderer.php(195): Drupal\Core\Render\Renderer->doRender(Array, false) #10 .../core/lib/Drupal/Core/Template/TwigExtension.php(501): Drupal\Core\Render\Renderer->render(Array) #11 .../sites/default/files/php/twig/5e529e5428eac_image-widget.html.twig_KfTZYpiKwi-X4dV4T99ICUwdq/kxNmBNRZMFRbp511qZHUnXAkjECy-7GeU2YHX2jtSbg.php(65): Drupal\Core\Template\TwigExtension->escapeFilter(Object(Drupal\Core\Template\TwigEnvironment), Array, 'html', NULL, true) #12 .../vendor/twig/twig/src/Template.php(427): __TwigTemplate_712aef3d190392e140fc20a4005e138095dd4252a75ec0690289066c2bd2a0ca->doDisplay(Array, Array) #13 .../vendor/twig/twig/src/Template.php(398): Twig\Template->displayWithErrorHandling(Array, Array) #14 .../sites/default/files/php/twig/5e529e5428eac_image-widget.html.twig_wbVFuiCy4euwSzawPjDv3M0Er/lrAvsARpOhULBJjHNJ0ZKgubfNueoLUdjhpok-QOwbg.php(55): Twig\Template->display(Array) #15 .../vendor/twig/twig/src/Template.php(427): __TwigTemplate_5ef466d0c30707156401b8e343a3c9755f32656884818c60827cc1579d63eec6->doDisplay(Array, Array) #16 .../vendor/twig/twig/src/Template.php(398): Twig\Template->displayWithErrorHandling(Array, Array) #17 .../vendor/twig/twig/src/Template.php(406): Twig\Template->display(Array) #18 .../core/themes/engines/twig/twig.engine(64): Twig\Template->render(Array) #19 .../core/lib/Drupal/Core/Theme/ThemeManager.php(384): twig_render_template('core/themes/sev...', Array) #20 .../core/lib/Drupal/Core/Render/Renderer.php(437): Drupal\Core\Theme\ThemeManager->render('image_widget', Array) #21 .../core/lib/Drupal/Core/Render/Renderer.php(450): Drupal\Core\Render\Renderer->doRender(Array) #22 .../core/lib/Drupal/Core/Render/Renderer.php(450): Drupal\Core\Render\Renderer->doRender(Array) #23 .../core/lib/Drupal/Core/Render/Renderer.php(450): Drupal\Core\Render\Renderer->doRender(Array) #24 .../core/lib/Drupal/Core/Render/Renderer.php(195): Drupal\Core\Render\Renderer->doRender(Array, false) #25 .../core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(226): Drupal\Core\Render\Renderer->render(Array, false) #26 .../core/lib/Drupal/Core/Render/Renderer.php(582): Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() #27 .../core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(227): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure)) #28 .../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)) #29 .../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)) #30 [internal function]: Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object(Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent), 'kernel.view', Object(Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher)) #31 .../core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php(111): call_user_func(Array, Object(Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent), 'kernel.view', Object(Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher)) #32 .../vendor/symfony/http-kernel/HttpKernel.php(156): Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('kernel.view', Object(Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent)) #33 .../vendor/symfony/http-kernel/HttpKernel.php(68): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1) #34 .../core/lib/Drupal/Core/StackMiddleware/Session.php(57): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #35 .../core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #36 .../modules/lscache-drupal-master/src/StackMiddleware/LiteSpeedCache.php(144): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #37 .../modules/lscache-drupal-master/src/StackMiddleware/LiteSpeedCache.php(120): Drupal\lite_speed_cache\StackMiddleware\LiteSpeedCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true) #38 .../core/modules/page_cache/src/StackMiddleware/PageCache.php(106): Drupal\lite_speed_cache\StackMiddleware\LiteSpeedCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #39 .../core/modules/page_cache/src/StackMiddleware/PageCache.php(85): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true) #40 .../core/modules/ban/src/BanMiddleware.php(50): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #41 .../core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\ban\BanMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #42 .../core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(52): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #43 .../vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #44 .../core/lib/Drupal/Core/DrupalKernel.php(693): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #45 .../index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #46 {main}.