[Koha] Software error in koha circulation.

Hi Everyone, I need help on this .....i get the following error when i try to borrow out book in circulation. am new to koha so every help is appreciated. Software error: A DateTime object can only be compared to another DateTime object (DateTime=HASH(0xbe72ef0), 2013-09-05). at /usr/share/koha/intranet/cgi-bin/circ/circulation.pl line 478 For help, please send mail to the webmaster (webmaster@lucid), giving this error message and the time and date of the error. -- View this message in context: http://koha.1045719.n5.nabble.com/Software-error-in-koha-circulation-tp57691... Sent from the Koha-general mailing list archive at Nabble.com.