Fatal Error after Activation

When I activate the plugin and try going to it’s tab, the page just shows up with the following:

Fatal error: Class ‘PDO’ not found in /wp-content/plugins/wp-ultimate-csv-importer/lib/skinnymvc/dbcontroller/base/SkinnyBaseDbController.php on line 7

Please let me know how to alleviate this, thank you!

https://wordpress.org/plugins/wp-ultimate-csv-importer/