WSOD on options page

Problem/Motivation

I installed the module + UI alongside drulma and on calling the configuration page, I get a WSOD:

I'm on drupal 8.9.3 (and many modules installed) with local php 7.4 server.

The website encountered an unexpected error. Please try again later.
Error: Interface 'Drupal\libraries\ExternalLibrary\Utility\LibraryIdAccessorInterface' not found in include() (line 11 of modules/contrib/libraries/src/ExternalLibrary/Exception/LibraryDefinitionNotFoundException.php).

include() (Line: 444)
Composer\Autoload\includeFile() (Line: 322)
Composer\Autoload\ClassLoader->loadClass()
spl_autoload_call() (Line: 56)
Drupal\libraries\ExternalLibrary\Definition\ChainDefinitionDiscovery->getDefinition() (Line: 54)
Drupal\libraries\ExternalLibrary\LibraryManager->getLibrary() (Line: 27)
libraries_library_info_build()
call_user_func_array() (Line: 392)
Drupal\Core\Extension\ModuleHandler->invoke() (Line: 359)
Drupal\Core\Asset\LibraryDiscoveryParser->parseLibraryInfo() (Line: 115)
Drupal\Core\Asset\LibraryDiscoveryParser->buildByExtension() (Line: 87)
Drupal\Core\Asset\LibraryDiscoveryCollector->getLibraryDefinitions() (Line: 66)
Drupal\Core\Asset\LibraryDiscoveryCollector->resolveCacheMiss() (Line: 149)
Drupal\Core\Cache\CacheCollector->get() (Line: 44)
Drupal\Core\Asset\LibraryDiscovery->getLibrariesByExtension() (Line: 80)
Drupal\libraries_provider\LibrariesProviderManager->getManagedLibraries() (Line: 24)
Drupal\libraries_provider_ui\LibraryListBuilder->load() (Line: 234)
Drupal\Core\Entity\EntityListBuilder->render() (Line: 23)
Drupal\Core\Entity\Controller\EntityListController->listing()
call_user_func_array() (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 573)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 124)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext() (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 151)
Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 68)
Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 57)
Drupal\Core\StackMiddleware\Session->handle() (Line: 47)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass() (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 47)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 52)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 23)
Stack\StackedHttpKernel->handle() (Line: 708)
Drupal\Core\DrupalKernel->handle() (Line: 19)
require('/home/andi/git/site-h4c-dev-local/web/index.php') (Line: 46)

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes