Fatal Error: Call to undefined method QListItem

OS Platform : Windows 2003 server
PHP version : PHP 5.3.5
MySQL version : My SQL Server 5.5
Tracmor version : tracmor-0.3.0
Browser & version : 1) MS IE - 8
                                2) Google Chrome - 11.0.696.57
                                 3) Mozilla Firefox - 2.0.0.20
Web Server :  IIS 6.0

Error messages
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It throws a runtime error while trying to add "assets" in "Receipt" . Randomly It started to hang up and gives an error message(only in Mozilla Firefox browser. In IE it just hangs, no error messages)  when I try to add assets after 145 th asset. Also it is very very slow when reaching to this point.

- In Mozilla Firefox browser it gives an error popup msg box with the message:-
                                                                "An error occured during AJAX Response parsing.
                                                                   The error response will appear in a new popup."

- Then loads another popup window with the error message:-
                       
  "Fatal Error: Call to undefined method QListItem::SetForm() in C:\Inetpub\tracmor\includes\
            qcodo\_core\qform\QFormBase.class.php on line 516"

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Please let me know if there is any solution for this.

Last edited by ragith (2011-05-03 03:55:36)