Magento 2.4.1: Exception #0 (ReflectionException): Class MagentoElasticsearchModelAdapterFieldMapperProductFieldMapper does not exist

Question

Upgraded Magento 2.3 to 2.4.1 recently. Everything seems fine with the website. When trying to login to Magento admin, below is what is displayed in the browser. Not sure what this means. Please advise as where to look for for a fix. Thanks

1 exception(s):
Exception #0 (ReflectionException): Class MagentoElasticsearchModelAdapterFieldMapperProductFieldMapper does not exist

Exception #0 (ReflectionException): Class MagentoElasticsearchModelAdapterFieldMapperProductFieldMapper does not exist
<pre>#1 MagentoFrameworkCodeReaderClassReader->getConstructor() called at [vendor/magento/framework/ObjectManager/Definition/Runtime.php:54]
#2 MagentoFrameworkObjectManagerDefinitionRuntime->getParameters() called at [vendor/magento/framework/ObjectManager/Factory/Compiled.php:100]
#3 MagentoFrameworkObjectManagerFactoryCompiled->create() called at [vendor/magento/framework/ObjectManager/ObjectManager.php:70]
#4 MagentoFrameworkObjectManagerObjectManager->get() called at [vendor/wyomind/framework/Helper/License.php:11]
#5 WyomindFrameworkHelperLicense->constructor() called at [vendor/wyomind/elasticsearchbrowser/Helper/Data.php:28]
#6 WyomindElasticsearchBrowserHelperData->__construct() called at [vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php:121]
#7 MagentoFrameworkObjectManagerFactoryAbstractFactory->createObject() called at [vendor/magento/framework/ObjectManager/Factory/Compiled.php:108]
#8 MagentoFrameworkObjectManagerFactoryCompiled->create() called at [vendor/magento/framework/ObjectManager/ObjectManager.php:70]
#9 MagentoFrameworkObjectManagerObjectManager->get() called at [vendor/wyomind/framework/Helper/License.php:11]
#10 WyomindFrameworkHelperLicense->constructor() called at [vendor/wyomind/elasticsearchbrowser/Plugin/Ui/Config/Data.php:13]
#11 WyomindElasticsearchBrowserPluginUiConfigData->__construct() called at [vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php:121]
#12 MagentoFrameworkObjectManagerFactoryAbstractFactory->createObject() called at [vendor/magento/framework/ObjectManager/Factory/Compiled.php:108]
#13 MagentoFrameworkObjectManagerFactoryCompiled->create() called at [vendor/magento/framework/ObjectManager/ObjectManager.php:70]
#14 MagentoFrameworkObjectManagerObjectManager->get() called at [vendor/magento/framework/Interception/PluginList/PluginList.php:174]
#15 MagentoFrameworkInterceptionPluginListPluginList->getPlugin() called at [vendor/magento/framework/Interception/Interceptor.php:133]
#16 MagentoUiConfigDataInterceptor->MagentoFrameworkInterception{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#17 MagentoUiConfigDataInterceptor->___callPlugins() called at [generated/code/Magento/Ui/Config/Data/Interceptor.php:23]
#18 MagentoUiConfigDataInterceptor->get() called at [vendor/magento/framework/View/Layout/Reader/UiComponent.php:100]
#19 MagentoFrameworkViewLayoutReaderUiComponent->interpret() called at [vendor/magento/framework/View/Layout/ReaderPool.php:105]
#20 MagentoFrameworkViewLayoutReaderPool->interpret() called at [vendor/magento/framework/View/Layout/Reader/Container.php:84]
#21 MagentoFrameworkViewLayoutReaderContainer->interpret() called at [vendor/magento/framework/View/Layout/ReaderPool.php:105]
#22 MagentoFrameworkViewLayoutReaderPool->interpret() called at [vendor/magento/framework/View/Page/Config/Reader/Body.php:68]
#23 MagentoFrameworkViewPageConfigReaderBody->interpret() called at [vendor/magento/framework/View/Layout/ReaderPool.php:105]
#24 MagentoFrameworkViewLayoutReaderPool->interpret() called at [vendor/magento/framework/View/Layout.php:334]
#25 MagentoFrameworkViewLayout->generateElements() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:32]
#26 MagentoFrameworkViewLayoutInterceptor->generateElements() called at [vendor/magento/framework/View/Layout/Builder.php:129]
#27 MagentoFrameworkViewLayoutBuilder->generateLayoutBlocks() called at [vendor/magento/framework/View/Page/Builder.php:65]
#28 MagentoFrameworkViewPageBuilder->generateLayoutBlocks() called at [vendor/magento/framework/View/Layout/Builder.php:65]
#29 MagentoFrameworkViewLayoutBuilder->build() called at [vendor/magento/framework/View/Page/Config.php:224]
#30 MagentoFrameworkViewPageConfig->build() called at [vendor/magento/framework/View/Page/Config.php:237]
#31 MagentoFrameworkViewPageConfig->publicBuild() called at [vendor/magento/framework/View/Result/Page.php:242]
#32 MagentoFrameworkViewResultPage->render() called at [vendor/magento/framework/View/Result/Layout.php:171]
#33 MagentoFrameworkViewResultLayout->renderResult() called at [generated/code/Magento/Backend/Model/View/Result/Page/Interceptor.php:23]
#34 MagentoBackendModelViewResultPageInterceptor->renderResult() called at [vendor/magento/framework/App/Http.php:120]
#35 MagentoFrameworkAppHttp->launch() called at [vendor/magento/framework/App/Bootstrap.php:263]
#36 MagentoFrameworkAppBootstrap->run() called at [index.php:39]
</pre>

Answer 1

等待大神答复