Find command is not working anymore (the same behavior with CTRL+F)

Hello, 

Since some days I am not able to use the "Find" menu entry nor the CTRL+F shortcut.

I am not sure what was changed. I have the latest version:

IntelliJ IDEA 2020.2.4 (Community Edition)
Build #IC-202.8194.7, built on November 24, 2020
Runtime version: 11.0.9+11-b944.49 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Windows 10 10.0
GC: ParNew, ConcurrentMarkSweep
Memory: 1979M
Cores: 12

In the log file I have this error when trying to execut the command:

2020-11-25 20:29:35,898 [10066976] ERROR - llij.ide.plugins.PluginManager - Wrong proportion: 1.1774193
java.lang.IllegalArgumentException: Wrong proportion: 1.1774193
at com.intellij.openapi.ui.Splitter.setProportion(Splitter.java:465)
at com.intellij.ui.JBSplitter.setProportion(JBSplitter.java:117)
at com.intellij.ui.JBSplitter.loadProportion(JBSplitter.java:123)
at com.intellij.ui.JBSplitter.setAndLoadSplitterProportionKey(JBSplitter.java:106)
at com.intellij.find.SearchReplaceComponent.<init>(SearchReplaceComponent.java:201)
at com.intellij.find.SearchReplaceComponent.<init>(SearchReplaceComponent.java:50)
at com.intellij.find.SearchReplaceComponent$Builder.build(SearchReplaceComponent.java:697)
at com.intellij.find.EditorSearchSession.<init>(EditorSearchSession.java:118)
at com.intellij.find.EditorSearchSession.start(EditorSearchSession.java:260)
at com.intellij.openapi.editor.actions.IncrementalFindAction$Handler.doExecute(IncrementalFindAction.java:67)
at com.intellij.openapi.editor.actionSystem.DynamicEditorActionHandler.doExecute(DynamicEditorActionHandler.java:52)
at com.intellij.openapi.editor.actionSystem.EditorActionHandler.lambda$execute$4(EditorActionHandler.java:198)
at com.intellij.openapi.editor.actionSystem.EditorActionHandler.doIfEnabled(EditorActionHandler.java:88)
at com.intellij.openapi.editor.actionSystem.EditorActionHandler.execute(EditorActionHandler.java:197)
at com.intellij.openapi.editor.actionSystem.EditorAction.lambda$actionPerformed$0(EditorAction.java:89)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:220)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:177)
at com.intellij.openapi.editor.actionSystem.EditorAction.actionPerformed(EditorAction.java:98)
at com.intellij.openapi.editor.actionSystem.EditorAction.actionPerformed(EditorAction.java:73)
at com.intellij.openapi.actionSystem.ex.ActionUtil.performActionDumbAware(ActionUtil.java:282)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher$1.performAction(IdeKeyEventDispatcher.java:610)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.lambda$processAction$3(IdeKeyEventDispatcher.java:670)
at com.intellij.openapi.application.TransactionGuardImpl.performUserActivity(TransactionGuardImpl.java:94)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processAction(IdeKeyEventDispatcher.java:669)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processAction(IdeKeyEventDispatcher.java:620)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processActionOrWaitSecondStroke(IdeKeyEventDispatcher.java:517)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.inInitState(IdeKeyEventDispatcher.java:471)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.dispatchKeyEvent(IdeKeyEventDispatcher.java:220)
at com.intellij.ide.IdeEventQueue.dispatchKeyEvent(IdeEventQueue.java:890)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:835)
at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$8(IdeEventQueue.java:452)
at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:744)
at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$9(IdeEventQueue.java:451)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:802)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:505)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
2020-11-25 20:29:35,898 [10066976] ERROR - llij.ide.plugins.PluginManager - IntelliJ IDEA 2020.2.4 Build #IC-202.8194.7
2020-11-25 20:29:35,898 [10066976] ERROR - llij.ide.plugins.PluginManager - JDK: 11.0.9; VM: OpenJDK 64-Bit Server VM; Vendor: JetBrains s.r.o.
2020-11-25 20:29:35,899 [10066977] ERROR - llij.ide.plugins.PluginManager - OS: Windows 10
2020-11-25 20:29:35,899 [10066977] ERROR - llij.ide.plugins.PluginManager - Last Action: Find

Can anyone tell me what is this: llij.ide.plugins.PluginManager - Wrong proportion?

I have tried to install it again but with the same result. I have also tried to: reset the key shortcuts, use the defaut theme, uninstall all the downloaded plugins, but without success.

Thank you in advance,

Marian