ParseError: syntax error, unexpected identifier "SWIPER_MODULES"

I just tried to update swiper formatter to2.0.1-beta3 and get the below error on my WSOD (I have $config['system.logging']['error_level'] = 'verbose'; in my settings.php)

The website encountered an unexpected error. Try again later.

ParseError: syntax error, unexpected identifier "SWIPER_MODULES", expecting "=" in Composer\Autoload\{closure}() (line 19 of modules/contrib/swiper_formatter/src/SwiperFormatterInterface.php).
Composer\Autoload\ClassLoader->loadClass() (Line: 55)
include('/home/keratai2/public_html/cetmen.com.tr/web/modules/contrib/swiper_formatter/src/Entity/SwiperFormatter.php') (Line: 576)
Composer\Autoload\{closure}() (Line: 427)
Composer\Autoload\ClassLoader->loadClass() (Line: 26)
swiper_formatter_requirements()
call_user_func_array() (Line: 409)
Drupal\Core\Extension\ModuleHandler->Drupal\Core\Extension\{closure}() (Line: 388)
Drupal\Core\Extension\ModuleHandler->invokeAllWith() (Line: 416)
Drupal\Core\Extension\ModuleHandler->invokeAll() (Line: 109)
Drupal\system\SystemManager->listRequirements() (Line: 53)
Drupal\system\Controller\SystemInfoController->status()
call_user_func_array() (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 627)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 124)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext() (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 181)
Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 58)
Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 32)
Drupal\big_pipe\StackMiddleware\ContentLength->handle() (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass() (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 50)
Drupal\ban\BanMiddleware->handle() (Line: 96)
Drupal\crowdsec\Middleware->handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 704)
Drupal\Core\DrupalKernel->handle() (Line: 19)

I'm on php8 and Drupal10.2.5