|If I start the app, don't happening anything. Sometimes the display become a darker, but I don't see the panels.|
The solution is to fully uninstall application and install again the fresh version of App.
Fully uninstall means performing the procedure described on the Uninstall Proc WebPage.
How to go to the Home's Library folder.
You should open „GO” menu in Finder application and when menu is opened hold down ALT / OPTION key. When you do this additional menu item should reveal (Library) and you may click it.
The another method is opening the menu „GO” and item „Go to folder …” and then copy&paste '/Users/(UserName)/Library/' (where (UserName) you have to exchange to your real user name) and then submit by ENTER key.