Can’t access Plesk (ERROR: PleskFatalException)

When you get the following error in the Control Panel:

ERROR: PleskFatalException
wrong id

Additionally, an exception has occurred while trying to report this error: PleskFatalException
wrong id

0: UserClient.php:19
UserClient->__construct(NULL null)
1: class.Session.php:208
Session->getUser()
2: index.php:53

Close your browser or delete your cookies and try logging in again.