Button not linking

I tried changing this within the core files of the plugin (just to test) but that didn’t work either.

I know this isn’t what should be done but this is what I did to get the button to link to the URL provided.
File: image-widget-deluxe.php
Line 227 //Button.

// Button.
			if ( $field == $widget_id . '-button' && ! empty( $url ) && ! empty( $button ) || $field === 'no-sort' && ! empty( $url ) && ! empty( $button ) ) :

				if ( empty($url_target) ) {
					$link = $url;
					$target = "_self";
				} else {
					$link = $url;
					$target = "_blank";
				}

				echo '<p class="rommeled_widget_image-field rommeled_widget_image-button"><a target="'. $target .'" href="'. $link .'"><button class="button btn">' . $button . '</button></p>';

			endif;
		}