Hello @PR,
Thank you for your inquiry. That widget is part of a Vendor plugin, so if you are not using a Vendor plugin on your site, it will not be possible to use that widget.
However, you can create a similar widget using the Static Block widget. To do this, go to WP Dashboard >> Static Blocks and create a new static block. Set the content as desired, and then use the Static Block sidebar widget to add it to the sidebar.
For more information, please watch the video I have provided for you: https://www.veed.io/view/9635290e-c332-4eb2-badf-9519ed5ff5cf?sharingWidget=true&panel=share
Best Regards,
8Theme’s Team