EBaseException Exception

Exception: EBaseException
File: /home/v/vanna0/public_html/zencms/modules/realty/RealtyController.php
Line: 81
Text: Trying to get property of non-object
Backtrace: #0 /home/v/vanna0/public_html/zencms/modules/realty/RealtyController.php(81): error_handler(8, 'Trying to get p...', '/home/v/vanna0/...', 81, Array)
#1 [internal function]: RealtyController->viewAction('641')
#2 /home/v/vanna0/public_html/zencms/control/BasicPageController.php(50): call_user_func_array(Array, Array)
#3 /home/v/vanna0/public_html/zencms/control/MainController.php(75): BasicPageController->run('view', Array)
#4 /home/v/vanna0/public_html/zencms/control/MainController.php(28): MainController->runController()
#5 /home/v/vanna0/public_html/zencms/index.php(12): MainController->run()
#6 {main}