PHP 7

When trying to run this theme on PHP 7 I get

Fatal error: Uncaught Error: Call to undefined function mysql_error() in /home/hyper/webapps/felle/wp-content/plugins/revslider/inc_php/framework/db.class.php:29 Stack trace: #0 /home/hyper/webapps/felle/wp-content/plugins/revslider/inc_php/framework/db.class.php(127): UniteDBRev->checkForErrors('fetch') #1 /home/hyper/webapps/felle/wp-content/plugins/revslider/inc_php/revslider_slider.class.php(1469): UniteDBRev->fetch('wp_bespdn_revsl...', '', 'id') #2 /home/hyper/webapps/felle/wp-content/plugins/js_composer/include/classes/vendors/plugins/class-vc-vendor-revslider.php(30): RevSlider->getArrSliders() #3 /home/hyper/webapps/felle/wp-includes/plugin.php(525): Vc_Vendor_Revslider->buildShortcode('') #4 /home/hyper/webapps/felle/wp-content/plugins/js_composer/js_composer.php(253): do_action('vc_after_mappin...') #5 /home/hyper/webapps/felle/wp-includes/plugin.php(525): Vc_Manager->init('') #6 /home/hyper/webapps/felle/wp-settings.php(392): do_action('init') #7 /home/hyper/webapps/felle/wp-config.php(96): require_once('/home in /home/hyper/webapps/felle/wp-content/plugins/revslider/inc_php/framework/db.class.php on line 29

If I drop back to php 5.6 this clears up. Hopefully this can be cleared up soon, PHP 7 runs insanely fast so can’t wait to switch.