ArgumentCountError thrown

Too few arguments to function Ow_Vote_Common_Controller::ow_voting_encrypt(), 1 passed in /home/123331.cloudwaysapps.com/jzknhamcga/public_html/wp-content/plugins/wp-voting-contest/owviews/frontend/ow_voting_shortcode_showcontest_view.php on line 62 and exactly 2 expected