Laravel 5.1 DecryptException in BaseEncrypter.php line 45: The payload is invalid

I have a L5.1 app that uses jquery datatables with ajax datasources. All of them work fine apart from one that causes the server to throw an exception when it posts the ajax request to get the data. The error I'm getting is:

DecryptException in BaseEncrypter.php line 45:
The payload is invalid.

I think this possibly has something to do with how much data the ajax request is posting since this particular datatable posts more data than the others. Also it must have something to do with CSRF protection because if I exclude the route from CSRF then it works fine.

Here are the headers I'm sending through:

Accept:application/json, text/javascript, */*; q=0.01
Accept-Encoding:gzip, deflate
Accept-Language:en-US,en;q=0.8
Cache-Control:no-cache
Connection:keep-alive
Content-Length:1589
Content-Type:application/x-www-form-urlencoded; charset=UTF-8
Cookie:gsScrollPos=; _gat=1; _ga=GA1.2.478522745.1445258590; XSRF-TOKEN=eyJpdiI6IlVYckJ5RW5rcVFVUlU0RjJLYjNmOWc9PSIsInZhbHVlIjoiRzRPcG4wWEhsaHVsSGdFRzh0UnhWWU5kXC9Jd0F1YWNjK0poOW5TcVpWMHhSZ0l6MXNtWVdZZ1pJVHBrRUJpYkZuaENacUxsM2M4RkxKOGVoNG5BSGtnPT0iLCJtYWMiOiJkNGUxOWM0NzQ2MThjNDg1OTg0MjIwYmY5NGNmZGEzNzc5ZjZiNmExYTQ1Yjk0YTc2YWRlMTYyZDI5OWQ5N2ZkIn0%3D; session=eyJpdiI6ImdpRXozUXBmT2lLRmhOSnU0QW9zTlE9PSIsInZhbHVlIjoiMmN3QXZWeVFqWEhMSmw1QTdIaEY4WU1EOEszM1RKQU0xTE00Z2I5VVh3RjNLSFpqQUZ6dDRYdU0rK3FVekhZXC9rZkNWakN4a0ZtOTMrYnZDS0doWHF3PT0iLCJtYWMiOiI0MDA3ZDgyNTI3MTY0ZDlmNjZjM2IzYmJjZTQ2NTc4ZjdiNDRjN2M4M2VhMWU1MDc2YzE1ZmM1MDA1M2NkNDZlIn0%3D
Host:local.thecraftchannel.tv
Origin:http://ift.tt/1LDrOj0
Pragma:no-cache
Referer:http://ift.tt/1ORxMBc
User-Agent:Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.71 Safari/537.36
X-Requested-With:XMLHttpRequest
X-XSRF-TOKEN:PGBwTUHVjIQJPuZHLhqX2yEJFl0srgP1J4lO2oJy

Here is the form data that is being sent through also with the request:

draw:1
columns[0][data]:0
columns[0][name]:
columns[0][searchable]:true
columns[0][orderable]:true
columns[0][search][value]:
columns[0][search][regex]:false
columns[1][data]:1
columns[1][name]:
columns[1][searchable]:true
columns[1][orderable]:true
columns[1][search][value]:
columns[1][search][regex]:false
columns[2][data]:2
columns[2][name]:
columns[2][searchable]:true
columns[2][orderable]:true
columns[2][search][value]:
columns[2][search][regex]:false
columns[3][data]:3
columns[3][name]:
columns[3][searchable]:true
columns[3][orderable]:true
columns[3][search][value]:
columns[3][search][regex]:false
columns[4][data]:4
columns[4][name]:
columns[4][searchable]:true
columns[4][orderable]:true
columns[4][search][value]:
columns[4][search][regex]:false
columns[5][data]:5
columns[5][name]:
columns[5][searchable]:false
columns[5][orderable]:false
columns[5][search][value]:
columns[5][search][regex]:false
order[0][column]:0
order[0][dir]:asc
start:0
length:10
search[value]:
search[regex]:false
product_ids[]:8
product_ids[]:5
product_ids[]:4
product_ids[]:3
product_ids[]:6
product_ids[]:9
product_ids[]:14
product_ids[]:11
product_ids[]:16
product_ids[]:21
product_ids[]:23

Anyone know why I am getting this error?

via Chebli Mohamed