Reflection Error

After IMCE update, site keeps corrupting and will not save.

Trying to run update, drush CR, or Drush UPDB the following error happens:

ReflectionException: Class \Drupal\imce\Controller\ImceHelpController does not exist in [error]
/Users/anli/Sites/devdesktop/s5e4c04274d835-dev/docroot/core/lib/Drupal/Core/Entity/EntityResolverManager.php:136
Stack trace:
#0 /Users/anli/Sites/devdesktop/s5e4c04274d835-dev/docroot/core/lib/Drupal/Core/Entity/EntityResolverManager.php(136): ReflectionMethod->__construct('\\Drupal\\imce\\Co...', 'index')
#1 /Users/anli/Sites/devdesktop/s5e4c04274d835-dev/docroot/core/lib/Drupal/Core/Entity/EntityResolverManager.php(221): Drupal\Core\Entity\EntityResolverManager->setParametersFromReflection(Array,
Object(Symfony\Component\Routing\Route))
#2 /Users/anli/Sites/devdesktop/s5e4c04274d835-dev/docroot/core/lib/Drupal/Core/EventSubscriber/EntityRouteAlterSubscriber.php(48):
Drupal\Core\Entity\EntityResolverManager->setRouteOptions(Object(Symfony\Component\Routing\Route))
#3 [internal function]: Drupal\Core\EventSubscriber\EntityRouteAlterSubscriber->onRoutingRouteAlterSetType(Object(Drupal\Core\Routing\RouteBuildEvent), 'routing.route_a...',
Object(Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher))
#4 /Users/anli/Sites/devdesktop/s5e4c04274d835-dev/docroot/core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php(111): call_user_func(Array,
Object(Drupal\Core\Routing\RouteBuildEvent), 'routing.route_a...', Object(Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher))
#5 /Users/anli/Sites/devdesktop/s5e4c04274d835-dev/docroot/core/lib/Drupal/Core/Routing/RouteBuilder.php(189):
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('routing.route_a...', Object(Drupal\Core\Routing\RouteBuildEvent))
#6 /Users/anli/Sites/devdesktop/s5e4c04274d835-dev/docroot/core/lib/Drupal/Core/ProxyClass/Routing/RouteBuilder.php(83): Drupal\Core\Routing\RouteBuilder->rebuild()
#7 /Users/anli/Sites/devdesktop/s5e4c04274d835-dev/docroot/core/includes/common.inc(1090): Drupal\Core\ProxyClass\Routing\RouteBuilder->rebuild()
#8 /Applications/DevDesktop/tools/vendor/drush/drush/commands/core/drupal/update.inc(120): drupal_flush_all_caches()
#9 /Applications/DevDesktop/tools/vendor/drush/drush/commands/core/drupal/batch.inc(163): drush_update_cache_rebuild(Object(DrushBatchContext))
#10 /Applications/DevDesktop/tools/vendor/drush/drush/commands/core/drupal/batch.inc(111): _drush_batch_worker()
#11 /Applications/DevDesktop/tools/vendor/drush/drush/includes/batch.inc(98): _drush_batch_command('836')
#12 /Applications/DevDesktop/tools/vendor/drush/drush/commands/core/drupal/update.inc(230): drush_batch_command('836')
#13 /Applications/DevDesktop/tools/vendor/drush/drush/commands/core/core.drush.inc(1227): _update_batch_command('836')
#14 /Applications/DevDesktop/tools/vendor/drush/drush/includes/command.inc(422): drush_core_updatedb_batch_process('836')
#15 /Applications/DevDesktop/tools/vendor/drush/drush/includes/command.inc(231): _drush_invoke_hooks(Array, Array)
#16 /Applications/DevDesktop/tools/vendor/drush/drush/includes/command.inc(199): drush_command('836')
#17 /Applications/DevDesktop/tools/vendor/drush/drush/lib/Drush/Boot/BaseBoot.php(67): drush_dispatch(Array)
#18 /Applications/DevDesktop/tools/vendor/drush/drush/includes/preflight.inc(66): Drush\Boot\BaseBoot->bootstrap_and_dispatch()
#19 /Applications/DevDesktop/tools/vendor/drush/drush/drush.php(12): drush_main()
#20 {main}

I can remove IMCE, but then I can no longer edit pages or save changes. After trying to save, above error happens