RMS giving error while RSB supplier service is invoked via SOAP UI

I am using the RSB Supplier service to add a supplier details using operation 'createSupplierDesc' to RMS.

But it is giving the below error

'Error ORA-01722: invalid number returned by program unit RMSAIASUB_SUPPLIER_VALIDATE.POPULATE_ADDR_DATA'

for the addr payload,

               <Addr>

                     <addr_type>01</addr_type>

                     <primary_addr_ind>Y</primary_addr_ind>

                     <add_1>40 Griffin House</add_1>

                     <add_2>Lever Street</add_2>

                     <add_3>SDD</add_3>

                     <city>MAN</city>

                     <state>MAN</state>

                     <country_id>UK</country_id>

                     <post>123456</post>

                     <contact_name>SDSF</contact_name>

                     <contact_phone>987456</contact_phone>

                     <contact_fax>987456</contact_fax>

                     <contact_email>aaa@sss.com</contact_email>

                  </Addr>

Any answer on this will be highly appreciated.