Undefined index: offset

WORDPRESS VERSION 5.4.1
PHP VERSION 7.2.14
Feedzy RSS Feeds Lite version 3.3.19

I am receiving this error for this RSS feed: https://www.hhs.gov/rss/news.xml
After the error I see the feed articles.

( ! ) Notice: Undefined index: offset in C:\wamp64\www\intranet\wp-content\plugins\feedzy-rss-feeds\includes\admin\feedzy-wp-widget.php on line 250
Call Stack
# Time Memory Function Location
1 0.0004 426024 {main}( ) …\index.php:0
2 0.0008 426304 require( ‘C:\wamp64\www\intranet\wp-blog-header.php’ ) …\index.php:17
3 1.9693 22363080 require_once( ‘C:\wamp64\www\intranet\wp-includes\template-loader.php’ ) …\wp-blog-header.php:19
4 1.9747 22383536 include( ‘C:\wamp64\www\intranet\wp-content\themes\spacious\page.php’ ) …\template-loader.php:106
5 2.3161 23294520 spacious_sidebar_select( ) …\page.php:32
6 2.3164 23294664 get_sidebar( ) …\functions.php:409
7 2.3164 23295040 locate_template( ) …\general-template.php:111
8 2.3167 23295136 load_template( ) …\template.php:672
9 2.3168 23295480 require_once( ‘C:\wamp64\www\intranet\wp-content\themes\spacious\sidebar.php’ ) …\template.php:723
10 2.3169 23295480 dynamic_sidebar( ) …\sidebar.php:25
11 2.3733 24170152 feedzy_wp_widget->display_callback( ) …\widgets.php:805
12 2.3736 24183000 feedzy_wp_widget->widget( ) …\class-wp-widget.php:380

( ! ) Notice: Undefined index: multiple_meta in C:\wamp64\www\intranet\wp-content\plugins\feedzy-rss-feeds\includes\admin\feedzy-wp-widget.php on line 251
Call Stack
# Time Memory Function Location
1 0.0004 426024 {main}( ) …\index.php:0
2 0.0008 426304 require( ‘C:\wamp64\www\intranet\wp-blog-header.php’ ) …\index.php:17
3 1.9693 22363080 require_once( ‘C:\wamp64\www\intranet\wp-includes\template-loader.php’ ) …\wp-blog-header.php:19
4 1.9747 22383536 include( ‘C:\wamp64\www\intranet\wp-content\themes\spacious\page.php’ ) …\template-loader.php:106
5 2.3161 23294520 spacious_sidebar_select( ) …\page.php:32
6 2.3164 23294664 get_sidebar( ) …\functions.php:409
7 2.3164 23295040 locate_template( ) …\general-template.php:111
8 2.3167 23295136 load_template( ) …\template.php:672
9 2.3168 23295480 require_once( ‘C:\wamp64\www\intranet\wp-content\themes\spacious\sidebar.php’ ) …\template.php:723
10 2.3169 23295480 dynamic_sidebar( ) …\sidebar.php:25
11 2.3733 24170152 feedzy_wp_widget->display_callback( ) …\widgets.php:805
12 2.3736 24183000 feedzy_wp_widget->widget( ) …\class-wp-widget.php:380

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