ThemeREX Addons is conflicting with Elementor

Yesterday i’ve updated Theme from 1.0.4 to 1.1.1 and updated the plugins. But after i did that, Elementor just stoped working. I deactivated all plugins and elementor worked again. Activating the plugins one by one i realized that when i activated ThemeREX Addons, Elementor stoped working.

With the ThemeREX Addons plugin deactivated there’s a whole bunch of content on my site missing. With it activated, the content reappears but I can’t edit the pages that use the Elementor.

I can’t understand what could be possibly wrong with that, but since the plugin is conflicting with ThemeREX Addons and it’s a pre packaged plugin that came with Rumble Theme.

System Check Current Suggested
WP version 5.5.3 5.0.0+
WP Memory limit 512 MB
PHP version 7.3.14 7.0.0+
PHP Memory Limit 1 GB 96 MB
PHP Post Max Size 100 MB 32 MB
PHP Max Upload Size 100 MB 32 MB
PHP Max Execution Time (sec) 600 300+
MySQL version 5.7.17

Tried every possible thread and forum out there, but no solution yet.
Could you guys help me?

The page I need help with: [log in to see the link]