The GET method is not supported when redirecting back in Laravel

I'm trying to redirect the user back to the previous page if the token entered is invalid but i'm getting the error "The GET method is not supported for this route. Supported methods: POST."

Everything works well when the token is valid. Here is my code

ForgotPasswordController

public function showPasswordResetForm(Request $request)
{
 $inputToken = $request->token;
 $tokenData = DB::table('password_resets')
 ->where('token', $inputToken)->first();
if (!$tokenData) return redirect()->back()->withErrors(['token' => 
'Token doesnt exist']); //redirect back if the token does not 
exist.
$token = $tokenData->token;
  return view('auth.passwords.reset')->with('token', $token);
}

Route

 Route::get('reset-password/{token}', 'Auth\ForgotPasswordController@showPasswordResetForm')->name('check.token');

Blade

  <form method="POST" action="">
                    @csrf

                    <div class="form-group row">
                        <label for="email" class="col-md-4 col-form-label text-md-right"></label>

                        <div class="col-md-6">
                            <input id='token' type="text" class="form-control @error('token') is-invalid @enderror" name="token" required autocomplete="token"  autofocus>

                            @error('token')
                                <span class="invalid-feedback" role="alert">
                                    <strong></strong>
                                </span>
                            @enderror
                        </div>
                    </div>

                    <div class="form-group row mb-0">
                        <div class="col-md-6 offset-md-4">
                            <button type="submit" class="btn btn-primary">
                                
                            </button>
                        </div>
                    </div>
                </form>

via Chebli Mohamed