the session variables are automatically destroyed in laravel

hi I have a project in laravel that installs it in a shared hosting, this project works properly locally, but when uploading it to the hosting, the session variables have stopped working or are lost immediately when sending a form. for example I have a function:

public function create(){   
/Session::put('mi_variable','hola mundo');    
dd(\Session::get('mi_variable')); // Aquí si se imprime.   
return view('vistas.formulario'); 
} 
public function imprimirVariableDeSesion(){   dd(\Session::get('mi_variable'));//Aquí no se imprime. 
}

when the form that returns in the first function is shown and sends me to the function (imprimirVariableDeSesion) , this variable is no longer displayed