Uncaught Error: Unsupported operand types: string + string
in /sites/nll.1.aordev.com/files/wp-content/plugins/custom-twitter-feeds-pro/inc/ctf-pro-functions.php on line 460

Call stack:

1. ctf_get_formatted_date()
   wp-content/plugins/custom-twitter-feeds-pro/templates/author.php:77
2. include('/sites/nll.1.aordev....templates/author.php')
   wp-content/plugins/custom-twitter-feeds-pro/templates/item.php:59
3. include('/sites/nll.1.aordev....o/templates/item.php')
   wp-content/plugins/custom-twitter-feeds-pro/inc/CtfFeedPro.php:1847
4. TwitterFeed\CtfFeedPro::tweet_loop()
   wp-content/plugins/custom-twitter-feeds-pro/templates/feed.php:25
5. include('/sites/nll.1.aordev....o/templates/feed.php')
   wp-content/plugins/custom-twitter-feeds-pro/inc/CtfFeedPro.php:1749
6. TwitterFeed\CtfFeedPro::getTweetSetHtml()
   wp-content/plugins/custom-twitter-feeds-pro/inc/ctf-pro-functions.php:197
7. ctf_init()
   wp-includes/shortcodes.php:434
8. do_shortcode_tag()
9. preg_replace_callback()
   wp-includes/shortcodes.php:273
10. do_shortcode()
    wp-content/themes/nll/pb/social_feed/social_feed.php:122
11. require('/sites/nll.1.aordev....feed/social_feed.php')
    wp-includes/template.php:812
12. load_template()
    wp-includes/template.php:745
13. locate_template()
    wp-includes/general-template.php:206
14. get_template_part()
    wp-content/themes/nll/pages/page-builder.php:112
15. include('/sites/nll.1.aordev....ges/page-builder.php')
    wp-includes/template-loader.php:106
16. require_once('/sites/nll.1.aordev..../template-loader.php')
    wp-blog-header.php:19
17. require('/sites/nll.1.aordev.com/files/wp-blog-header.php')
    index.php:17