CSS file path error

The plugin enqueues css file with double slash, similar to https://…/wp-content/plugins/column-shortcodes//assets/css/shortcodes.css Notice the double slash just prior to assets folder name. column-shortcodes.php contains; wp_enqueue_style( 'cpsh-shortcodes', $this->get_url() . '/assets/css/shortcodes.css', array(), $this->get_version(), 'all' ); … where $this->get_url() produces path with trailing slash like; https://.../wp-content/plugins/column-shortcodes/ … and as the following static path to css file starts with slash, it causes the double slash in the path.