Please, check if you have reached the maximum number of opened conversations allowed as set in the plugin settings.
No, the conversation ends only if one of the two speakers ends it on purpose clicking on the “End Chat” button.
To show the chat pop-up correctly, the theme installed on your site needs to use the function “wp_footer()” in its templates.
Yes, the plugin works well. It does not interfere with pages built with Elementor, so you can use both plugins on your site without any issues.