Invalid address: Address has mismatched network type.. Code:1

[Lalitpatadiya12]

While fetching the details of the address, it will give error as below

Invalid address: Address has mismatched network type... Code:1

Here is my code for fetching the information of the litecoin address.

var explorers = require('litecore-explorers');
 var request_network_type = 'mainnet';
 var insight = new explorers.Insight();
 var postaddress = req.body.address;
 var responseSet = {};
 insight.address(postaddress, function (err, resultset) {
     if (err) {
         responseSet = { status: 400, message: 'There is some error while fetching details', data: err }
     } else {
         responseSet = { status: 200, message: 'Fetch information successfully.', data: resultset }
     }
     res.send(JSON.stringify(responseSet));
 });

My valid litecoin address :

LW6aLDFxHgchA7QQmaniNemrBG8VqacunE

Does any has an idea why it will give error