In my project i am using PIM to read contacts of phone book.... previously it was working fine .. but today it is giving me error

finaliseAppDynamicHeap app 2 locked object 0x19b534e0 type 8 reserved by com/nokia/mid/impl/isa/pim/PBSearchManager findRecord(IIILcom/nokia/mid/impl/isa/pim/PBNativeRecordI
finaliseAppDynamicHeap app 2 locked object 0x19af23bc type 2 reserved by com/nokia/mid/impl/isa/pim/PBSearchManager findRecord(IIILcom/nokia/mid/impl/isa/pim/PBNativeRecordI
Caught IOException : java.io.IOException: 8-Error in HTTP operation


i really dont knw what and why it is giving me this error..
Plzz give some solution to solve this particular error...asap

Thanks
Vinita!!!