The value 0 is not found in map

while select  dirpartylocation
        where dirpartylocation.Party == this.OMOperatingUnitID
    notExists join inventLocationLogisticsLocation
        where inventLocationLogisticsLocation.InventLocation == sInventLocation.RecId
    notExists join _logisticspostaladdress
            where inventLocationLogisticsLocation.Location == _logisticspostaladdress.Location
    {
        rolesCon = _rolesMap.lookup(_logisticspostaladdress.Location);
        //Create new location
        newLogisticsLocation = LogisticsLocation::create(LogisticsLocation::find(_logisticspostaladdress.Location).Description);

 

        //Create address
        newPostalAddress.clear();
        newPostalAddress.data(logisticsPostalAddress::findByLocation(_logisticspostaladdress.Location));
        newPostalAddress.Location = newLogisticsLocation.RecId;
        newPostalAddress.insert();

getting the error like "the value 0 is not found in map" in Line 8.