Hello
To solve the issue for now you need to create and activate the child theme.
Below is the link on how to create the child theme .
Child Theme
You can simply create the child theme using plugin as well.
After creating and activating the child theme create a content.php file in child theme and paste the below code.
Also create index.php file in child theme and copy exact code as the parent theme and replace the code in line no 41 i.e
get_template_part( 'template-parts/content', get_post_format() );
with the below code.
get_template_part( 'content');
Hope this helps .
The theme will also be updated soon.
Best Regards!!