Why nothing is inserted in the table even if it is related to sql and laravel

I created a modal using Bootstrap, to add a new row into table. I don't know why and how doesn't work.

This is table_edit.blade.php MODAL:

<div id="formModal" class="modal fade" role="dialog">
 <div class="modal-dialog">
  <div class="modal-content">
   <div class="modal-header">
          <h4 class="modal-title">Adaugare Rolete</h4>
          <button type="button" class="close" data-dismiss="modal">&times;</button>
        </div>
        <div class="modal-body">
         <span id="form_result"></span>
         <form method="post" id="sample_form" class="form-horizontal" action ="">
          @csrf
          <div class="form-group">
            <label class="control-label col-md-4" >ProdusID : </label>
            <div class="col-md">
             <input type="text" name="ProdusID" id="ProdusID" class="form-control" />
            </div>
           </div>
           <div class="form-group">
            <label class="control-label col-md-4">Denumire : </label>
            <div class="col-md">
             <input type="text" name="Denumire" id="Denumire" class="form-control" />
            </div>
           </div>

           <div class="form-group">
            <label class="control-label col-md-4" >Cant1 : </label>
            <div class="col-md">
             <input type="text" name="Cant1" id="Cant1" class="form-control" />
            </div>
           </div>
           
          <div class="form-group">
            <label class="control-label col-md-4" >Cant2 : </label>
            <div class="col-md">
             <input type="text" name="Cant2" id="Cant2" class="form-control" />
            </div>
           </div>
           
          <div class="form-group">
            <label class="control-label col-md-4" >Cant3 : </label>
            <div class="col-md">
             <input type="text" name="Cant3" id="Cant3" class="form-control" />
            </div>
           </div>
           
          <div class="form-group">
            <label class="control-label col-md-4" >Cant4 : </label>
            <div class="col-md">
             <input type="text" name="Cant4" id="Cant4" class="form-control" />
            </div>
           </div>
           
            <div class="form-group">
            <label class="control-label col-md-4" >Data : </label>
            <div class="col-md">
             <input type="date" name="Data" id="Data" class="form-control" />
            </div>
           </div>
           
            <div class="form-group">
            <label class="control-label col-md-4" >Pret Intrare : </label>
            <div class="col-md">
             <input type="text" name="Pret_Intrare" id="Pret_Intrare" class="form-control" />
            </div>
           </div>
           
            <div class="form-group">
            <label class="control-label col-md-4" >Pret Iesire : </label>
            <div class="col-md">
             <input type="text" name="Pret_Iesire" id="Pret_Iesire" class="form-control" />
            </div>
           </div>
          
                <br />
                <div class="form-group" align="center">
                 <input type="hidden" name="action" id="action" value="Add" />
                 <input type="hidden" name="hidden_id" id="hidden_id" />
                 <input type="submit" name="action_button" id="action_button" class="btn btn-warning" value="Add" />
                </div>
         </form>
        </div>
     </div>
    </div>
</div>

Here we can see I do an easy html bootstrap, it's oke, it's work, but affter, maybe in Controller it's the problem.

This is Controller:

   public function store(Request $request){
        $rules = array(
            'ProdusID'  => 'required',
            'Denumire' => 'required',
            'Cant1' => 'required',
            'Cant2' => 'required',
            'Cant3' => 'required',
            'Cant4' => 'required',
            'Data' => 'required',
            'Pret_Intrare'  => 'required',
            'Pret_Iesire' => 'required'  
        );   
   
         $error = Validator::make($request->all(), $rules);
        
        if($error->fails()){
            return response()->json(['errors' => $error->errors()->all()]);
        }

        
        $form_data = array(
            'ProdusID'  =>  $request->ProdusID,
            'Denumire' =>  $request->Denumire,
            'Cant1' =>  $request->Cant1,
            'Cant2' =>  $request->Cant2,
            'Cant3' =>  $request->Cant3,
            'Cant4' =>  $request->Cant4,
            'Data' =>  $request->Data,
            'Pret_Intrare'  =>  $request->Pret_Intrare,
            'Pret_Iesire' =>  $request->Pret_Iesire
        );
  
        Rolete::create($form_data);
        
        return response()->json(['succes' => 'Data Added successfully.']);
   }

And web:

Route::post('tabledit/store', 'TableditControllerRolete@store')->name('tabledit.store');

This is an image with modal

(!) UPDATE: I don't have any error, but he doesn't adding into table.

source https://stackoverflow.com/questions/70266710/why-nothing-is-inserted-in-the-table-even-if-it-is-related-to-sql-and-laravel