Isupplier portal-New supplier registration-

Hi

We are R12.1.3

When we are on New Supplier page,clicking on  any button like cancel,save,apply template,register we are getting the below error

  Error 
You are trying to access a page that is no longer active.
- The referring page may have come from a previous session. Please select Home to proceed

enabling the diagnostic provides the below information

Request Parameters
searchText=
lovCriteriaHiddenFieldTaxRegCountry=TaxRegCountryCode::TaxRegCountry3Rz2LCF3
evtSrcRowId=
_ti=1011104636
akRegionApplicationId=0
oapc=-1
oapc=55
N4:length=1
N11:length=1
submitFunc=POS_FLEXREG_NEWREQ_SEARCH
BuyerInternalNotes=
_FORM_SUBMIT_BUTTON=SaveButtonOHce1DKQ
TaxpayerId=
TaxRegCountry=
lovOnClickJSExecutedHiddenFieldTaxRegCountry=N
SearchName=
lovAutoClearHFTaxRegCountry=Nc23ySQCx
OAMC=G