Fatal error after upfront update and snapshot restore

I updated upfront on website and it removed a lot of the template layouts and design elements I was using so I restored the theme with snapshot. Theme restore resulted in error:

“Fatal error: Class ‘Upfront_PostPart_View’ not found in /home/bucker5/public_html/kokopelealpaca.com/wp-content/themes/upfront/elements/upfront-post-data/lib/class_upfront_post_data_part_view.php on line 8”

Cannot access wordpress backend to try another snapshot restore