Might occur based on the following two conditions
Missing token when submitting the form. Add the following file on each form submission
<input type="hidden" name="_token" value="{{ csrf_token() }}">
Or
Messed up with authentication sessions (Adding social log in or others after the basic login process)
Delete all the files in framework/sessions
Or session messed up with domain
In the session.php file
Missing token when submitting the form. Add the following file on each form submission
<input type="hidden" name="_token" value="{{ csrf_token() }}">
Or
Messed up with authentication sessions (Adding social log in or others after the basic login process)
Delete all the files in framework/sessions
Or session messed up with domain
In the session.php file
'domain' => env('DOMAIN', null),
and in the .env file, set domain to your domain
