Critical error batch uploading ZIP

Just trying to upload a small quantity of PDFs in a ZIP and I get this error.

“There has been a critical error on your website. Please check your site admin email inbox for instructions.”

Error Details
=============
An error of type E_ERROR was caused in line 266 of the file /home/walkerin/public_html/test/wp-content/plugins/memphis-documents-library/includes/mdocs-import.php. Error message: Uncaught Error: Class 'ZipArchive' not found in /home/walkerin/public_html/test/wp-content/plugins/memphis-documents-library/includes/mdocs-import.php:266
Stack trace:
#0 /home/walkerin/public_html/test/wp-content/plugins/memphis-documents-library/includes/mdocs-batch-upload.php(37): mdocs_unzip('/tmp/phpJ0kste', '/tmp')
#1 /home/walkerin/public_html/test/wp-content/plugins/memphis-documents-library/includes/mdocs-dashboard.php(27): mdocs_batch_upload('batch')
#2 /home/walkerin/public_html/test/wp-content/plugins/memphis-documents-library/includes/mdocs-dashboard.php(15): mdocs_dashboard_view()
#3 /home/walkerin/public_html/test/wp-includes/class-wp-hook.php(288): mdocs_dashboard('')
#4 /home/walkerin/public_html/test/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters('', Array)
#5 /home/walkerin/public_html/test/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#6 /home/walkerin/public_html/test/wp-admin/admin.php(254): do_action('toplevel_page_m...')
#7 {main}
  thrown

I’m running WP 5.3.2 and MDL 3.10.5