Exception occured while setting value in PreparedStatement for the Column

Hello, I am getting the following error when entering data in my form http://creator.zoho.com/dcmvhm/dreamcatcher-database/#Form:Bookings:

1 . [t_643693000000013024] Exception occured while setting value in PreparedStatement for the Column [Total_owed_643693000000013845] Check whether the datatype for this column is given as specified in the data-dictionary .[t_643693000000013024] Exception occured while setting value in PreparedStatement for the Column [Total_owed_643693000000013845] Check whether the datatype for this column is given as specified in the data-dictionary

Any help would be much appreciated!

Thanks, Roger