Laravel Project works in one location and does not work in another

Question

Good evening, I am with a project being done in the Standard 5.8 and I have a certain problem, in short the project works in my work, but does not work at home.

The point is, the project opens and runs normally in the place where I work, which is where I did it all. I created a repository. git and cloned the project to work at home, copied the . env and put at home, I used Composer and npm install, all right, I installed the same version of php and IIS Express and managed the mysql database. The project up runs at home, displays most of the screens. But I’m basically in 2 problems:

1- The login (done with make:auth) is not performed, even with the information inserted correctly, when you click on login it returns to the same screen without logging in. On the other hand, when registering, the registration is done correctly and redirects with the logged-in user. If I log out with this user, I can’t log in anymore (back to the initial problem).

2- I created a profile screen for the user, however, when accessing it is returning error with the following message: "Method Illuminate Database Eloquent Collection::user does not exist".

The error occurs in the following function of my Profilecontroller:

    public function show($username){

    $user_id = User::select('id')->where('username', $username)->first();
    $profile = User::find($user_id)->user();

    return view('perfil/perfil', ['profile'=>$profile]);
}

Specifically on the line $profile = User::find ($user_id)->user();.

Profile Model:

   class Profile extends Model
{
    protected $fillable = [
        'user_id','main_sheet', 'main_camp', 'age', 'location', 'avatar'
    ];

    public $timestamps = false;

    public function user(){
        return $this->belongsTo(User::class);
    }
}

User Model:

class User extends Authenticatable
{
    use Notifiable;

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'name', 'email', 'password', 'username'
    ];

    /**
     * The attributes that should be hidden for arrays.
     *
     * @var array
     */
    protected $hidden = [
        'password', 'remember_token',
    ];

    /**
     * The attributes that should be cast to native types.
     *
     * @var array
     */
    protected $casts = [
        'email_verified_at' => 'datetime',
    ];

    public function profile(){
        return $this->hasMany(Profile::class);
    }

}

Anyway, these are the problems I’m having. Remembering that the project works perfectly in my workplace. Both the login and the profile screen, I’ve tried several things, but nothing solved.

Thank you very much to anyone who can help.