[1.5.6.2] PrestaShopException

[locant57]

Hello everyone, a few days ago I noticed a problem on the BO that concerns the change in the status of orders.
When it worked well, when changing the status of an order, I could update it, through the appropriate drop-down window, choosing between Accepted Payment, Preparation in progress, Ordinecevaso, etc ...
For a few days, I see the drop-down window, select the state that interests me, but when I type the "Add" button, the page remains to load, until I decide to block the page loading and update it.
After updating the page on the drop-down, the item that I had chosen remains selected, and if I go to check the status of the order, in fact this has changed.
The problem is that it no longer makes me see the history of the various state changes.

If I do not block the page load, but I wait, after a certain time check the following message:

[PrestaShopException]
the object can not be loaded
at line 1247 in file controller / admin /
AdminOrdersController.php

1241.
1242. public function renderView ()
1243. {
1244. $ order = new Order (Tools :: getValue
( 'Id_order'));
1245. if (! Validate :: isLoadedObject ($ order))
1246. launch new PrestaShopException ('object not
it can be loaded ');
1247.
1248. $ customer = new customer ($ order-> id_customer);
1249. $ carrier = new Carrier ($ order-> id_carrier);
1250. $ products = $ this-> getProducts (order $);
1251. $ currency = new Currency ((int) $ order->
id_currency);
AdminOrdersControllerCore-> renderView - [line 1497 -
classes / controller / AdminController.php] - [0
Topic]
AdminControllerCore-> initContent - [line 167 - classes /
controller / Controller.php] - [0 Topic]
ControllerCore-> run - [line 348 - classes /
Dispatcher.php] - [0 Argument]
DispatcherCore-> dispatch - [line 53 - admin1234 /
index.php] - [0 Topic]

I found several posts on the forum for PrestaShopException, but none for my specific problem.
I hope someone can help me.
Greetings.
Antonio

[NemoPS]

Interesting, it looks like no id order is passed to the page (given the error).
Do you have any module hooked to orderStatusUpdate?

You can check it in modules/positions

[locant57]

Thank you for your answer.
I checked on modules / locations, if there was some module connected to orderStatusUpdate.
I did not find any linked forms.
Do you have any other idea where the problem might be?
Thank you for your help.