IntelliJ startup error - Internal error. Please report to http://jb.gg/ide/critical-startup-errors
<p>when I am trying to start my intelliJ it gives the below error in my Windows 7:</p>

<p>Internal error. Please report to <a href="http://jb.gg/ide/critical-startup-errors" rel="noreferrer">http://jb.gg/ide/critical-startup-errors</a></p>

<pre><code>java.lang.RuntimeException: java.lang.IllegalStateException: @NotNull method com/intellij/openapi/progress/ProgressManager.getInstance must not return null
    at com.intellij.idea.IdeaApplication.run(IdeaApplication.java:201)
    at com.intellij.idea.MainImpl$1$1$1.run(MainImpl.java:63)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:744)
    at java.awt.EventQueue.access$400(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:697)
    at java.awt.EventQueue$3.run(EventQueue.java:691)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:714)
    at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:360)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: java.lang.IllegalStateException: @NotNull method com/intellij/openapi/progress/ProgressManager.getInstance must not return null
    at com.intellij.openapi.progress.ProgressManager.getInstance(ProgressManager.java:35)
    at com.intellij.openapi.application.impl.ApplicationImpl.createComponents(ApplicationImpl.java:505)
    at com.intellij.openapi.components.impl.ComponentManagerImpl.init(ComponentManagerImpl.java:107)
    at com.intellij.openapi.application.impl.ApplicationImpl.load(ApplicationImpl.java:454)
    at com.intellij.openapi.application.impl.ApplicationImpl.load(ApplicationImpl.java:446)
    at com.intellij.idea.IdeaApplication.run(IdeaApplication.java:194)
    ... 16 more
</code></pre>