Failed to store data in laravel 8

I'm making a form so that users can request to create a new account to the admin, but every time I try to send data, it always fails, even though I've checked every part of my code, can anyone help me?

the form code :

                                            <form method="POST" action="">
                                                @csrf
                                                <div class="form-group col-md-12">
                                                    <label for="name">Nama</label>
                                                    <input type="text" name="name" class="form-control" id="name">
                                                </div>
                                                <div class="form-group col-md-12">
                                                    <label for="email">Email</label>
                                                    <input type="text" name="email" class="form-control" id="email">
                                                </div>
                                                <div class="form-group col-md-12">
                                                    <label for="password">Password</label>
                                                    <input type="text" name="password" class="form-control"
                                                        id="password">
                                                </div>
                                                <div class="form-group col-md-12">
                                                    <label for="password_confirm">Konfirmasi Password</label>
                                                    <input name="password_confirm" type="text" class="form-control"
                                                        id="password">
                                                </div>
                                                <button type="submit" class="btn btn-primary pull-right"
                                                    style="margin-right: 15px;">Request</button>
                                            </form>

this is the controller :

public function requestAccount(Request $request){
        $request->validate([
            'name' => 'required|string|max:255',
            'ra_instansi_id' => 'required',
            'email' => 'required|string|email|max:255',
            'password' => 'required',
            'password_confirm' => 'required'
        ]);
        if ($request->get('password') == $request->get('password_confirm')){
            $data = new requestAkun();
            $data->name = $request->get('name');
            $data->ra_user_id = Auth::id();
            $data->ra_instansi_id = Auth::user()->instansiID;
            $data->email = $request->get('email');
            $data->password = $request->get('password');
            $data->status = "pending";
            $data->save();
            return Redirect::to('/request-akun/request-lists')->with('success','Request Berhasil dikirim');
        } else {
            return Redirect::to('/request-akun/request-lists')->with('error','Password tidak sama');
        }  
    }

this is the model code:

class requestAkun extends Model
{
    use HasFactory, Uuids;
    protected $table = 'request_akun';
    public $timestamps = true;
    protected $fillable = [
        'name',
        'ra_instansi_id',
        'ra_user_id',
        'email',
        'password',
        'status'
    ];
}

this is the route :

Route::prefix('request-akun')->group(function(){
        Route::post('/make-request',[userController::class,'requestAccount'])->name('make-request');
    });