StartupAbortedException: Fatal error initializing 'com.intellij.psi.stubs.StubUpdatingIndex' - pycharm

[dwrch23]

after installation and restart of dotplugin i get the following error message in pycharm 2021.2 any recommendations / solutions?

com.intellij.ide.plugins.StartupAbortedException: Fatal error initializing 'com.intellij.psi.stubs.StubUpdatingIndex' at com.intellij.serviceContainer.ComponentManagerImplKt.handleComponentError(ComponentManagerImpl.kt:1481) at com.intellij.util.indexing.FileBasedIndexDataInitialization.lambda$initAssociatedDataForExtensions$0(FileBasedIndexDataInitialization.java:88) at com.intellij.util.indexing.IndexDataInitializer.executeTask(IndexDataInitializer.kt:76) at com.intellij.util.indexing.IndexDataInitializer.access$executeTask(IndexDataInitializer.kt:15) at com.intellij.util.indexing.IndexDataInitializer$runParallelTasks$1$1.run(IndexDataInitializer.kt:50) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) 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$1.run(Executors.java:665) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: com.intellij.diagnostic.PluginException: Cannot create class org.plugin.dot.DotParserDefinition (classloader=PluginClassLoader(plugin=PluginDescriptor(name=dotplugin, id=org.plugin.dot.id, descriptorPath=plugin.xml, path=~/Library/Application Support/JetBrains/PyCharmCE2021.2/plugins/dotplugin, version=1.2, package=null), packagePrefix=null, instanceId=27, state=active)) at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:870) at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:887) at com.intellij.serviceContainer.LazyExtensionInstance.createInstance(LazyExtensionInstance.java:55) at com.intellij.serviceContainer.LazyExtensionInstance.getInstance(LazyExtensionInstance.java:44) at com.intellij.serviceContainer.BaseKeyedLazyInstance.getInstance(BaseKeyedLazyInstance.java:38) at com.intellij.psi.stubs.StubUpdatingIndex.getExtensions(StubUpdatingIndex.java:452) at com.intellij.psi.stubs.StubUpdatingIndex.instantiateElementTypesFromFields(StubUpdatingIndex.java:445) at com.intellij.psi.stubs.StubUpdatingIndex.lambda$ensureSerializationManagerInitialized$0(StubUpdatingIndex.java:435) at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:705) at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:647) at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:63) at com.intellij.openapi.progress.impl.CoreProgressManager.executeNonCancelableSection(CoreProgressManager.java:223) at com.intellij.psi.stubs.StubUpdatingIndex.ensureSerializationManagerInitialized(StubUpdatingIndex.java:434) at com.intellij.psi.stubs.StubUpdatingIndex.getValueExternalizer(StubUpdatingIndex.java:353) at com.intellij.util.indexing.impl.storage.DefaultIndexStorageLayout.createIndexStorage(DefaultIndexStorageLayout.kt:75) at com.intellij.util.indexing.impl.storage.DefaultIndexStorageLayout$SingleEntryStorageLayout.openIndexStorage(DefaultIndexStorageLayout.kt:166) at com.intellij.psi.stubs.StubUpdatingIndex$3.openIndexStorage(StubUpdatingIndex.java:394) at com.intellij.util.indexing.impl.storage.TransientFileContentIndex$1.openIndexStorage(TransientFileContentIndex.java:42) at com.intellij.util.indexing.impl.storage.VfsAwareMapReduceIndex.lambda$new$0(VfsAwareMapReduceIndex.java:75) at com.intellij.util.indexing.impl.MapReduceIndex.(MapReduceIndex.java:102) at com.intellij.util.indexing.impl.storage.VfsAwareMapReduceIndex.(VfsAwareMapReduceIndex.java:88) at com.intellij.util.indexing.impl.storage.VfsAwareMapReduceIndex.(VfsAwareMapReduceIndex.java:74) at com.intellij.util.indexing.impl.storage.TransientFileContentIndex.(TransientFileContentIndex.java:38) at com.intellij.psi.stubs.StubUpdatingIndexStorage.(StubUpdatingIndexStorage.java:32) at com.intellij.psi.stubs.StubUpdatingIndex.createIndexImplementation(StubUpdatingIndex.java:386) at com.intellij.util.indexing.FileBasedIndexImpl.createIndex(FileBasedIndexImpl.java:573) at com.intellij.util.indexing.FileBasedIndexImpl.initIndexStorage(FileBasedIndexImpl.java:495) at com.intellij.util.indexing.FileBasedIndexImpl.registerIndexer(FileBasedIndexImpl.java:455) at com.intellij.util.indexing.FileBasedIndexDataInitialization.lambda$initAssociatedDataForExtensions$0(FileBasedIndexDataInitialization.java:79) ... 17 more Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.plugin.dot.DotParserDefinition at java.base/jdk.internal.misc.Unsafe.allocateInstance(Native Method) at java.base/java.lang.invoke.DirectMethodHandle.allocateInstance(DirectMethodHandle.java:482) at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:830) ... 45 more