After upgrading Elementor to 2.6.5, and Elementor Pro to 2.5.14, the content inside the Premium Carousel now displays this error:
Notice: elementor/post-css-file/parse is deprecated since version 2.0.0! Use elementor/css-file/post/parse instead. in /{INSTALL_PATH}/wp-includes/functions.php on line 4711
I would be glad to check things further from your end, but I will need an access credentials for your WP Dashboard. So, please submit a ticket on our support ticket system from here
Kindly, be noted that no one can check your credentials except the agent handling your ticket.