Laravel Unautorized error on random browser

I have create my project using laravel. It work well, but in random browser it give me error like this:

[0] "Unautorized" on line 35 of file /vendor/laravel/framework/src/Illuminate/Foundation/helpers.php

In my device the program run so well, but in some client browser, sometimes it gives that error. I use laravel 5.5.* in this project.

How to solved this issue? Thanks in advance

via Chebli Mohamed