ERROR: PleskFatalException Owner not defined

[Francisco Gonzalez]

Hello when upgrading from 8.6 to 9.0.1 got the following error:

ERROR: PleskFatalException
Owner not defined

Additionally, an exception has occurred while trying to report this error: PleskFatalException
Owner not defined

0: plib\user\UserManager.php:73
UserManager::getParenUser(object of type UserClient)
1: plib\user\User.php:446
User->getParentUser()
2: plib\elements.php3:1181
getCustomPageTitle(object of type UserClient)
3: plib\elements.php3:1171
getCustomPageTitle(object of type UserNone)
4: plib\elements.php3:1117
getPleskTitle()
5: htdocs\login.php3:28

 

[Eurotimmy]

Error in UserManager.php?

I'm seeing this error in Plesk 10 when I try to login.
Can somebody tell me if the error line which reads:

0: UserManager.php:73
UserManager::getParenUser(object of type UserReseller)

Is this a mistake in the typing in the application from a few versions ago?
Is the function is missing the letter 't' in
getParentUser

Tim