Not working in Laravel 8 + Vue && also getting Internal server error on laravel 6.0 too.

[Nisarg-iflair]

Hello, I am trying to integrate this package with Laravel 8. When I tried to add the package for laravel-fastlogin, I'm Getting conflict errors as shown below.

Also, I have tried with "Carnival_panel" cloned which is mentioned in the Used By section of this package Github repo. there I have made some changes and tried to call the useLogin() function with necessary params. but this is also not working properly. getting "Internal server error". Please check the below Screenshot.

Could you please do needful on this!

Thanks.