Background of the issue:
We encountered an issue where both our website languages are suddenly down after updating Elementor Pro. After this, we've disabled the WPML Multilingual CMS plugin which was then at v4.6.13. After that, our base language of the website (NL) worked, however, our alternate language (EN) didn't work anymore. We proceeded with updating it to the latest version - 4.6.15 via OTGS installer plugin - update process went smooth, however, we're still unable to activate the plugin due to the same error message like I mentioned. Link to a page where the issue can be seen: hidden link
Symptoms:
The error is universal WP error 500. PHP Fatal error: Uncaught Error: Class "Elementor\Core\Schemes\Color" not found. PHP Fatal error: Uncaught Error: Call to a member function get_current_language() on null. I know you're going to ask me for debug information, but unfortunately, I can't access that because your plugin is deactivated, and I can't activate it in order to access the required information.
Questions:
What can we do to re-activate the plugin and have our secondary language working again?