Hello,
Thank you for reaching out to Elementor.
Elementor is not yet compatible with the PHP 8+ version. Please refer to the following document and consider being on a compatible version of Elementor.
“Elementor’s Roadmap to Upgrade PHP Versions“
If you that this is a bug, please note that development-related issues/queries (custom widgets and functions, Theme Child, custom code and CSS, BETA testing issues, compatibility issues, etc.). have to be sent to our Github account, where our developers will be able to assist. Kindly note that our GitHub project is not a support channel; therefore, the response times may vary.
To post on our Github Repository, you can follow this guide: https://github.com/pojome/elementor/blob/master/.github/CONTRIBUTING.md
You could also refer to our developers’ documentation and see if that helps: https://developers.elementor.com/
I hope this helps. Thanks and have a wonderful day!
Kind Regards,