Fatal error: Uncaught TypeError: PrestaShop\PrestaShop\Core\Util\String\StringModifier::replaceAccentedChars(): Argument #1 ($string) must be of type string, null given, called in /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/classes/Tools.php on line 1407 and defined in /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/src/Core/Util/String/StringModifier.php:97 Stack trace: #0 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/classes/Tools.php(1407): PrestaShop\PrestaShop\Core\Util\String\StringModifier->replaceAccentedChars() #1 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/modules/ps_facebook/classes/Provider/EventDataProvider.php(255): ToolsCore::replaceAccentedChars() #2 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/modules/ps_facebook/classes/Provider/EventDataProvider.php(120): PrestaShop\Module\PrestashopFacebook\Provider\EventDataProvider->getCMSPageData() #3 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/modules/ps_facebook/classes/Dispatcher/EventDispatcher.php(90): PrestaShop\Module\PrestashopFacebook\Provider\EventDataProvider->generateEventData() #4 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/modules/ps_facebook/ps_facebook.php(314): PrestaShop\Module\PrestashopFacebook\Dispatcher\EventDispatcher->dispatch() #5 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/classes/Hook.php(1043): Ps_facebook->hookDisplayHeader() #6 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/classes/Hook.php(418): HookCore::coreCallHook() #7 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/classes/Hook.php(981): HookCore::callHookOn() #8 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/classes/controller/FrontController.php(615): HookCore::exec() #9 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/controllers/front/CmsController.php(160): FrontControllerCore->initContent() #10 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/classes/controller/Controller.php(319): CmsControllerCore->initContent() #11 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/classes/Dispatcher.php(510): ControllerCore->run() #12 /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/index.php(28): DispatcherCore->dispatch() #13 {main} thrown in /srv/data/web/vhosts/computercitybcn.mypresta.shop/htdocs/src/Core/Util/String/StringModifier.php on line 97