RutjeT

I can confirm that I did the same as mheple2 to resolve my error.

In general: you can customize the widgets (and more) from the event calendar by placing copies of the files from the plugin folder in you theme folder.
/home/newcrave/public_html/wp-content/themes/craven-main/tribe-events/widgets/list-widget.php

These copies are (cannot) be updated automatically by the plugin. So if the plugin is updated you should always check if the copied files in the theme need to be updated.

I did a file compare between the new list-widget.php from the plugin folder and the old customized one in the theme. This revealed that the line
$posts = tribe_get_list_widget_events();
was missing in my customized file.

Of course if you have more/other customized files you should check those too.

I had the same problem and solved it.
It was caused by using a custom list-widget.php in my theme.

This update updated also list-widget.php in the plugin folder. I my case merging my customize list-widget.php in the theme with the changes in the new list-widget.php file solved my problem.

Hope this helps.