Help troubleshout “connection lost. saving has been disabled

I am experiencing an issue with Elementor when editing old pages: “Connection lost. Saving has been disabled until you’re reconnected.”

I have tried disabling all security measures in cPanel, increasing all PHP configurations, and turning off ModSecurity, reinstall anything. However, I have not found any relevant entries in the logs indicating what is blocking the Elementor requests or the domain.

But when add new page with simple text, saving work fine.

I found issue from console firefox

Uncaught ReferenceError: elementorV2 is not defined
    86956 https://mydomain.com/wp-content/plugins/elementor/assets/js/e-react-promotions.min.js?ver=3.27.6:2
    __webpack_require__ https://mydomain.com/wp-content/plugins/elementor/assets/js/e-react-promotions.min.js?ver=3.27.6:2
    38316 https://mydomain.com/wp-content/plugins/elementor/assets/js/e-react-promotions.min.js?ver=3.27.6:2
    __webpack_require__ https://mydomain.com/wp-content/plugins/elementor/assets/js/e-react-promotions.min.js?ver=3.27.6:2
    73487 https://mydomain.com/wp-content/plugins/elementor/assets/js/e-react-promotions.min.js?ver=3.27.6:2
    __webpack_require__ https://mydomain.com/wp-content/plugins/elementor/assets/js/e-react-promotions.min.js?ver=3.27.6:2
    12227 https://mydomain.com/wp-content/plugins/elementor/assets/js/e-react-promotions.min.js?ver=3.27.6:2
    __webpack_require__ https://mydomain.com/wp-content/plugins/elementor/assets/js/e-react-promotions.min.js?ver=3.27.6:2
    <anonymous> https://mydomain.com/wp-content/plugins/elementor/assets/js/e-react-promotions.min.js?ver=3.27.6:2
---
Uncaught TypeError: can't access property "hasClass", h is undefined

• This topic was modified 2 weeks, 2 days ago by Fornob.