Cannot get store error.

[Oro smith]

The following error message is seen in the error.log file when clicking the link to go the url http://xxx:8888/mail/mail/mail.wml?id=2.wml "Cannot get store and connect null." However this error is noticed only in the mobile phone and no such messages are seen when the same url is accessed from the opera web browser. Why is this so?? is this because session is not being created. If so why is session not created only in the mobile phone and not in opera browser?? regards.