# Site is down, cryptic error message **URL:** \ **Category:** Using Concrete / Help\ **Created:** [November 7, 2023, 10:59pm UTC](https://forums.concretecms.org/t/site-is-down-cryptic-error-message/6470 "2023-11-07T22:59:29Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![gewald](https://forums.concretecms.org/user_avatar/forums.concretecms.org/gewald/32/3805_2.png) [@gewald](https://forums.concretecms.org/u/gewald)\ **Post date:** [November 7, 2023, 10:59pm UTC](https://forums.concretecms.org/t/site-is-down-cryptic-error-message/6470/1 "2023-11-07T22:59:29Z")
If you are looking for technical assistance, be sure and include the version of Concrete and PHP that you are using. **Fatal error** : Cannot use Concrete\Core\Foundation\Object as Object because ‘Object’ is a special class name in **/home/customer/www/iuphotos.com/public\_html/updates/concrete5.7.4.2\_remote\_updater/concrete/src/Foundation/ClassLoader.php** on line **4** ---
**Author:** ![gewald](https://forums.concretecms.org/user_avatar/forums.concretecms.org/gewald/32/3805_2.png) [@gewald](https://forums.concretecms.org/u/gewald)\ **Post date:** [November 7, 2023, 11:12pm UTC](https://forums.concretecms.org/t/site-is-down-cryptic-error-message/6470/2 "2023-11-07T23:12:09Z")
My host can support php 7.3 but is on 7.4 now. Broken by this? ---
**Author:** ![ConcreteOwl](https://forums.concretecms.org/user_avatar/forums.concretecms.org/concreteowl/32/6304_2.png) [@ConcreteOwl](https://forums.concretecms.org/u/ConcreteOwl)\ **Post date:** [November 8, 2023, 7:52am UTC](https://forums.concretecms.org/t/site-is-down-cryptic-error-message/6470/3 "2023-11-08T07:52:30Z")
Yes, PHP 7.4 reserves ‘Object’ as a special class name. This error will be one of many whilst your site is running on PHP 7.4. Roll back your PHP version to 7.3 to get your site working again and then consider updating to Concrete Version 8