405 Method Not Allowed response: { "message": "The GET method is not supported for this route. Supported methods: POST."} - api

Question

I created an API with tymon/jwt-auth, I test it on POSTMAN and it works very well, but when I want to consume it with Guzzle I encountered this error :
GuzzleHttp\Exception\ClientException Client error: POST http://localhost/project/public/api/stands/1/images2/ resulted in a
405 Method Not Allowed response: { "message": "The GET method is not
supported for this route. Supported methods: POST.", "exception":
"Symfony\ (truncated...)
Route for API :
Route::post('stands/{id}/images2', 'ImageController#store');
Controller ImageController.php for API :
public function store(Request $request, $id) {
$validator = Validator::make($request->all(),
[
'nom' => 'required|mimes:jpeg,png'
]);
if ($validator->fails()) {
return response()->json(['error'=>$validator->errors()], 401);
}
if ($files = $request->file('nom'))
{
$path = public_path() . '/images/';
$files->move($path, $files->getClientOriginalName() );
$image = new Image();
$image->nom = $files->getClientOriginalName();
// $image->stand_id= $request->stand_id;
$stand = $this->user->stands()->find($id);
if ($stand->images()->save($image)){
return response()->json([
'success' => true,
"message" => "File successfully uploaded"
]);
$image->save();
}
else{
return response()->json([
'success' => false,
'message' => 'Sorry, image could not be added'
], 500);
}
}
}
Form :
<form method="POST" enctype="multipart/form-data" action="{{ route('postImage',request()->route('id')) }}">
{{ csrf_field() }}
{{ method_field("post")}}
<!--begin::Card-->
<div class="card card-custom gutter-b example example-compact">
<div class="card-header">
<div class="card-title">
<h3 class="card-label">
Upload
</h3>
</div>
</div>
<div class="card-body">
<div class="row">
<div class="col-md-6 mx-auto">
<div class="box-browse" >
<div class="custom-file">
<input type="file" name="nom" class="custom-file-input" id="inputGroupFile01">
</div>
<div class="content-upload">
<i class="fa fa-download" aria-hidden="true"></i>
</div>
<span class="form-text text-muted">Allowed file types: png, jpg,
jpeg.</span>
<!-- <div class="custom-file">
<label class="custom-file-label" for="customFile">Choose
file</label>
</div> -->
</div>
</div>
</div>
</div>
</div>
<!--end::Card-->
<input type="submit" name="submit" value="ok" />
</form>
Controller Admin\ImageController.php that consumes API for upload file :
public function store(Request $request, $id){
$file = $request->file('nom');
$file_path = $file->getPathname();
$file_mime = $file->getMimeType('image');
$file_uploaded_name = $file->getClientOriginalName();
$url = "http://localhost/project/public/api/stands/".$id."/images2/";
$client = new \GuzzleHttp\Client();
try {
$response = $client->post($url,
[
'multipart' => [
[
'name' => 'nom',
'filename' => $file_uploaded_name,
'Content-Type' => 'multipart/form_data',
'contents' => fopen($file_path, 'r'),]
],
'headers' =>
[
'Authorization' => 'Bearer '.Session::get('token'),
'Accept' => 'application/json',
'Content-Type' => 'multipart/form_data',
]
]);
} catch (Exception $e) {
}
the route :
Route::post('/stands/{id}/images2/', 'Admin\ImageController#store')->name('postImage');