Update to version 3.4.0-5 - function getDisplayName()

Good morning everyone,

I continue to have the same problems every time I update the version to the most recent one, it has already happened with the ojs-3.4.0-4 version and it still remains with the most recent ojs-3.4.0-5 version, the blank user profile page, plugins not loading, I saw the following issue A blank page return (3.4.0-1), but I thought the problem was solved with the latest versions, I continue to get this error message:
PHP Fatal error: Uncaught Error: Call to a member function getDisplayName() on null in /srv/http/ojs-3.4.0-5/lib/pkp/classes/i18n/Locale.php:279\nStack trace:\n#0 [internal function]: PKP\i18n\Locale->PKP\i18n\{closure}()\n#1 /srv/http/ojs-3.4.0-5/lib/pkp/classes/i18n/Locale.php(279): array_map()\n#2 /srv/http/ojs-3.4.0-5/lib/pkp/classes/i18n/Locale.php(271): PKP\i18n\Locale->getSupportedLocales()\n#3 /srv/http/ojs-3.4.0-5/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php(338): PKP\i18n\Locale->getSupportedFormLocales()\n#4 /srv/http/ojs-3.4.0-5/lib/pkp/classes/form/Form.php(85): Illuminate\Support\Facades\Facade::__callStatic()\n#5 /srv/http/ojs-3.4.0-5/lib/pkp/classes/user/form/BaseProfileForm.php(38): PKP\form\Form->__construct()\n#6 /srv/http/ojs-3.4.0-5/lib/pkp/classes/user/form/IdentityForm.php(32): PKP\user\form\BaseProfileForm->__construct()\n#7 /srv/http/ojs-3.4.0-5/lib/pkp/controllers/tab/user/ProfileTabHandler.php(65): PKP\user\form\IdentityForm->__construct()\n#8 [internal function]: PKP\controllers\tab\user\ProfileTabHandler->identity()\n#9 /srv/http/ojs-3.4.0-5/lib/pkp/classes/core/PKPRouter.php(334): call_user_func()\n#10 /srv/http/ojs-3.4.0-5/lib/pkp/classes/core/PKPComponentRouter.php(291): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest()\n#11 /srv/http/ojs-3.4.0-5/lib/pkp/classes/core/Dispatcher.php(165): PKP\core\PKPComponentRouter->route()\n#12 /srv/http/ojs-3.4.0-5/lib/pkp/classes/core/PKPApplication.php(388): PKP\core\Dispatcher->dispatch()\n#13 /srv/http/ojs-3.4.0-5/index.php(21): PKP\core\PKPApplication->execute()\n#14 {main}\n thrown in /srv/http/ojs-3.4.0-5/lib/pkp/classes/i18n/Locale.php on line 279, referer: http://ojs3.unict.it/ojs-3.4.0-5/index.php/index/user/profile

Where am I wrong? Is it a misconfiguration problem? Thanks to anyone who can help me.

Angelo

If it helps, when I change the language to English this error is generated:

InvalidArgumentException: Invalid/unsupported locale “en”, default locale restored in /srv/http/ojs-3.4.0-5/lib/pkp/classes/i18n/Locale.php:141\nStack trace:\n#0 /srv/http/ojs-3.4.0-5/lib/pkp/classes/i18n/Locale.php(130): PKP\i18n\Locale->setLocale()\n#1 /srv/http/ojs-3.4.0-5/lib/pkp/classes/i18n/Locale.php(419): PKP\i18n\Locale->getLocale()\n#2 /srv/http/ojs-3.4.0-5/lib/pkp/classes/i18n/Locale.php(105): PKP\i18n\Locale->translate()\n#3 /srv/http/ojs-3.4.0-5/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Foundation/helpers.php(938): PKP\i18n\Locale->get()\n#4 /srv/http/ojs-3.4.0-5/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Foundation/helpers.php(973): trans()\n#5 /srv/http/ojs-3.4.0-5/plugins/themes/default/DefaultThemePlugin.php(45): __()\n#6 /srv/http/ojs-3.4.0-5/lib/pkp/classes/plugins/ThemePlugin.php(130): APP\plugins\themes\default\DefaultThemePlugin->init()\n#7 [internal function]: PKP\plugins\ThemePlugin->themeRegistered()\n#8 /srv/http/ojs-3.4.0-5/lib/pkp/classes/plugins/Hook.php(139): call_user_func_array()\n#9 /srv/http/ojs-3.4.0-5/lib/pkp/classes/plugins/Hook.php(113): PKP\plugins\Hook::run()\n#10 /srv/http/ojs-3.4.0-5/lib/pkp/classes/plugins/PluginRegistry.php(128): PKP\plugins\Hook::call()\n#11 /srv/http/ojs-3.4.0-5/lib/pkp/classes/template/PKPTemplateManager.php(1435): PKP\plugins\PluginRegistry::loadCategory()\n#12 /srv/http/ojs-3.4.0-5/lib/pkp/classes/plugins/Plugin.php(403): PKP\template\PKPTemplateManager::getManager()\n#13 /srv/http/ojs-3.4.0-5/lib/pkp/classes/plugins/Plugin.php(137): PKP\plugins\Plugin->_registerTemplateResource()\n#14 /srv/http/ojs-3.4.0-5/lib/pkp/classes/plugins/LazyLoadPlugin.php(34): PKP\plugins\Plugin->register()\n#15 /srv/http/ojs-3.4.0-5/plugins/generic/webFeed/WebFeedPlugin.php(37): PKP\plugins\LazyLoadPlugin->register()\n#16 /srv/http/ojs-3.4.0-5/lib/pkp/classes/plugins/PluginRegistry.php(76): APP\plugins\generic\webFeed\WebFeedPlugin->register()\n#17 /srv/http/ojs-3.4.0-5/lib/pkp/classes/plugins/PluginRegistry.php(121): PKP\plugins\PluginRegistry::register()\n#18 [internal function]: PKP\plugins\PluginRegistry::PKP\plugins\{closure}()\n#19 /srv/http/ojs-3.4.0-5/lib/pkp/classes/plugins/PluginRegistry.php(121): array_walk_recursive()\n#20 /srv/http/ojs-3.4.0-5/lib/pkp/classes/core/Dispatcher.php(155): PKP\plugins\PluginRegistry::loadCategory()\n#21 /srv/http/ojs-3.4.0-5/lib/pkp/classes/core/PKPApplication.php(388): PKP\core\Dispatcher->dispatch()\n#22 /srv/http/ojs-3.4.0-5/index.php(21): PKP\core\PKPApplication->execute()\n#23 {main}, referer: http://ojs3.unict.it/ojs-3.4.0-5/index.php/annali-sdf/submissions