Fatal error: Uncaught Error: Class "Locale" not found in /usr/share/icinga-php/ipl/vendor/ipl/i18n/src/GettextTranslator.php:199 Stack trace: #0 /usr/share/php/Icinga/Application/ApplicationBootstrap.php(702): ipl\I18n\GettextTranslator->setLocale() #1 /usr/share/php/Icinga/Application/Web.php(106): Icinga\Application\ApplicationBootstrap->setupInternationalization() #2 /usr/share/php/Icinga/Application/ApplicationBootstrap.php(388): Icinga\Application\Web->bootstrap() #3 /usr/share/php/Icinga/Application/webrouter.php(105): Icinga\Application\ApplicationBootstrap::start() #4 /usr/share/icingaweb2/public/index.php(4): require_once('...') #5 {main} thrown in /usr/share/icinga-php/ipl/vendor/ipl/i18n/src/GettextTranslator.php on line 199