Undefined index, Call to undefined function

Hello
I get these errors when I open a post that contains the thumbnails widget

Notice: Undefined index: logonly in D:\xampp\htdocs\wordpress\wp-content\plugins\wp-photo-album-plus\wppa-thumbnail-widget.php on line 166

Notice: Undefined index: name in D:\xampp\htdocs\wordpress\wp-content\plugins\wp-photo-album-plus\wppa-thumbnail-widget.php on line 161

and when I try to edit the post with Elementor I get this Error:
Fatal error: Uncaught Error: Call to undefined function wppa_get_lb_panorama_full_html() in D:\xampp\htdocs\wordpress\wp-content\plugins\wp-photo-album-plus\wppa-thumbnails.php:1657 Stack trace: #0 D:\xampp\htdocs\wordpress\wp-content\plugins\wp-photo-album-plus\wppa-thumbnails.php(1566): wppa_get_the_widget_thumb(‘thumbnail’, Array, ‘6’, ‘thumbs’, Array, ‘<div id=&quo…’, ‘http://localhos…&#8217;, Array, ‘ onmouseout=”jQ…’) #1 D:\xampp\htdocs\wordpress\wp-content\plugins\wp-photo-album-plus\wppa-thumbnail-widget.php(114): wppa_do_the_widget_thumb(‘thumbnail’, Array, ‘6’, ‘thumbs’, Array, ‘2016_Charity_Ru…’, ‘http://localhos…&#8217;, Array, ‘ onmouseout=”jQ…’) #2 D:\xampp\htdocs\wordpress\wp-content\plugins\elementor\includes\widgets\wordpress.php(258): ThumbnailWidget->widget(Array, Array) #3 D:\xampp\htdocs\wordpress\wp-content\plugins\elementor\includes\base\widget-base.php(474): Elementor\Widget_WordPress->render() #4 D:\xampp\htdocs\wordpress\wp-content\plugins\elementor\includes\base\widget-base.php(580): Elemento in D:\xampp\htdocs\wordpress\wp-content\plugins\wp-photo-album-plus\wppa-thumbnails.php on line 1657