log error

hello! theres an error on our site where the copy of our article doesn’t show up, only the photo. WordPress support said to send this along

thebunionpaper.com [149229382] $ wp php-errors
#3 /srv/htdocs/wp-content/themes/newsmag-pro/template-parts/content-single.php(38): get_template_part('template-parts/...')
#4 /wordpress/core/5.8.1/wp-includes/template.php(772): require('/srv/htdocs/wp-...')
#5 /wordpress/core/5.8.1/wp-includes/template.php(716): load_template('/srv/htdocs/wp-...', false, Array)
#6 /wordpress/core/5.8.1/wp-includes/general-template.php(204): locate_template(Array, true, false, Array)
#7 /srv/htdocs/wp-content/themes/newsmag-pro/single.php(69): get_template_part('template-parts/...', 'single')
#8 /wordpress/core/5.8.1/wp-includes/template-loader.php(106): include('/srv/htdocs/wp-...')
#9 /wordpress/core/5.8.1/wp-blog-header.php(19): require_once('/wordpress/core...')
#10 /wordpress/core/5.8.1/index.php(17): require('/wordpress/core...')
#11 {main}
  thrown in /srv/htdocs/wp-content/themes/newsmag-pro/template-parts/author-info.php on line 16
[15-Oct-2021 13:51:21 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function get_coauthors() in /srv/htdocs/wp-content/themes/newsmag-pro/template-parts/author-info.php:16
Stack trace:
#0 /wordpress/core/5.8.1/wp-includes/template.php(772): require()
#1 /wordpress/core/5.8.1/wp-includes/template.php(716): load_template('/srv/htdocs/wp-...', false, Array)
#2 /wordpress/core/5.8.1/wp-includes/general-template.php(204): locate_template(Array, true, false, Array)
#3 /srv/htdocs/wp-content/themes/newsmag-pro/template-parts/content-single.php(38): get_template_part('template-parts/...')
#4 /wordpress/core/5.8.1/wp-includes/template.php(772): require('/srv/htdocs/wp-...')
#5 /wordpress/core/5.8.1/wp-includes/template.php(716): load_template('/srv/htdocs/wp-...', false, Array)
#6 /wordpress/core/5.8.1/wp-includes/general-template.php(204): locate_template(Array, true, false, Array)
#7 /srv/htdocs/wp-content/themes/newsmag-pro/single.php(69): get_template_part('template-parts/...', 'single')
#8 /wordpress/core/5.8.1/wp-includes/template-loader.php(106): include('/srv/htdocs/wp-...')
#9 /wordpress/core/5.8.1/wp-blog-header.php(19): require_once('/wordpress/core...')
#10 /wordpress/core/5.8.1/index.php(17): require('/wordpress/core...')
#11 {main}
  thrown in /srv/htdocs/wp-content/themes/newsmag-pro/template-parts/author-info.php on line 16
[15-Oct-2021 13:51:32 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function get_coauthors() in /srv/htdocs/wp-content/themes/newsmag-pro/template-parts/author-info.php:16

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