Hi
Thank you for your reply
Indeed I doesn't seem to be the source of my problem.
I installed again prestashop from scratch and it appears again.
A lot more when I open the module section
This morning just going to back office I have the following error before login
RuntimeException in classes.php line 109:Failed to start the session: already started by PHP.
in classes.php line 109
at NativeSessionStorage->start() in classes.php line 484
at Session->start() in SessionTokenStorage.php line 90
at SessionTokenStorage->hasToken('ANONYMOUS_USER') in CsrfTokenManager.php line 54
at CsrfTokenManager->getToken('ANONYMOUS_USER') in classes.php line 7844
at Router->generate('admin_product_catalog') in Link.php line 722
at LinkCore->getAdminLink('AdminProducts') in AdminController.php line 1999
at AdminControllerCore->getTabs('9', '2') in AdminController.php line 2001
at AdminControllerCore->getTabs('2', '1') in AdminController.php line 2001
at AdminControllerCore->getTabs() in AdminController.php line 1854
at AdminControllerCore->initHeader() in AdminController.php line 53
at AdminController->initHeader() in AdminLoginController.php line 146
at AdminLoginControllerCore->initContent() in Controller.php line 205
at ControllerCore->run() in Dispatcher.php line 369
at DispatcherCore->dispatch() in index.php line 95
I Installed AgileMultiseller module, I don't know if there a link on the increase of Internal error, but I had some already.
And before installing again prestashop I tried without Agile module, with error again.
My host is Gandi, I tried to check with them but at the moment, they don't have a clue.
I am lost