can't install in WebStorm

[Balenciaga33]

Hi! I'm trying to install your MarkupToScss plugin to WebStorm 2021.2.3
but I've got fatal error https://prnt.sc/1wq87gg
what should I do? I really need this plugin((

here is the full error code
com.intellij.diagnostic.PluginException: com.xcodersteam.idea.plugins.mkupscss.GenerateSCSSAction PluginClassLoader(plugin=PluginDescriptor(name=Markup to SCSS, id=com.xcodersteam.idea.plugins.mkupscss, descriptorPath=plugin.xml, path=\AppData\Roaming\JetBrains\WebStorm2021.2\plugins\MarkupToSCSS, version=0.2.1, package=null), packagePrefix=null, instanceId=95, state=active)
at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:895)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.instantiate(ActionManagerImpl.java:195)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.convertStub(ActionManagerImpl.java:180)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getActionImpl(ActionManagerImpl.java:518)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getAction(ActionManagerImpl.java:507)
at com.intellij.openapi.actionSystem.DefaultActionGroup.unStub(DefaultActionGroup.java:381)
at com.intellij.openapi.actionSystem.DefaultActionGroup.getChildren(DefaultActionGroup.java:341)
at com.intellij.openapi.actionSystem.DefaultActionGroup.getChildren(DefaultActionGroup.java:320)
at com.intellij.ide.ui.customization.CustomizationUtil.getReordableChildren(CustomizationUtil.java:69)
at com.intellij.ide.ui.customization.CustomisedActionGroup.getChildren(CustomisedActionGroup.java:48)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.doGetChildren(ActionUpdater.java:602)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.lambda$new$1(ActionUpdater.java:114)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.callAction(ActionUpdater.java:176)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.lambda$new$2(ActionUpdater.java:114)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.lambda$getGroupChildren$26(ActionUpdater.java:411)
at com.intellij.util.TimeoutUtil.compute(TimeoutUtil.java:134)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.lambda$getGroupChildren$28(ActionUpdater.java:410)
at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1705)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.getGroupChildren(ActionUpdater.java:409)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.doExpandActionGroup(ActionUpdater.java:400)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.expandActionGroup(ActionUpdater.java:230)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.lambda$expandActionGroupAsync$14(ActionUpdater.java:281)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.lambda$expandActionGroupAsync$16(ActionUpdater.java:305)
at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1078)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.lambda$expandActionGroupAsync$17(ActionUpdater.java:305)
at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runActionAndCancelBeforeWrite(ProgressIndicatorUtils.java:161)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.lambda$expandActionGroupAsync$18(ActionUpdater.java:301)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:183)
at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:705)
at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:647)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:63)
at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:170)
at com.intellij.openapi.progress.util.BackgroundTaskUtil.runUnderDisposeAwareIndicator(BackgroundTaskUtil.java:270)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.lambda$expandActionGroupAsync$19(ActionUpdater.java:300)
at com.intellij.codeWithMe.ClientId$Companion.withClientId(ClientId.kt:135)
at com.intellij.codeWithMe.ClientId.withClientId(ClientId.kt)
at com.intellij.openapi.actionSystem.impl.ActionUpdater.lambda$expandActionGroupAsync$20(ActionUpdater.java:298)
at com.intellij.util.concurrency.BoundedTaskExecutor.doRun(BoundedTaskExecutor.java:216)
at com.intellij.util.concurrency.BoundedTaskExecutor.access$200(BoundedTaskExecutor.java:27)
at com.intellij.util.concurrency.BoundedTaskExecutor$1.execute(BoundedTaskExecutor.java:195)
at com.intellij.util.ConcurrencyUtil.runUnderThreadName(ConcurrencyUtil.java:213)
at com.intellij.util.concurrency.BoundedTaskExecutor$1.run(BoundedTaskExecutor.java:184)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668)
at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665)
at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.lang.ClassNotFoundException: com.xcodersteam.idea.plugins.mkupscss.GenerateSCSSAction PluginClassLoader(plugin=PluginDescriptor(name=Markup to SCSS, id=com.xcodersteam.idea.plugins.mkupscss, descriptorPath=plugin.xml, path=\AppData\Roaming\JetBrains\WebStorm2021.2\plugins\MarkupToSCSS, version=0.2.1, package=null), packagePrefix=null, instanceId=95, state=active)
at com.intellij.serviceContainer.ComponentManagerImplKt.doLoadClass(ComponentManagerImpl.kt:1489)
at com.intellij.serviceContainer.ComponentManagerImplKt.access$doLoadClass(ComponentManagerImpl.kt:1)
at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:887)
... 48 more