showing php errors how to fix

Notice Undefined variable: html 1

the_content()
wp-content/themes/Divi/page.php:45
apply_filters(‘the_content’)
wp-includes/post-template.php:240
ExpandDiviSinglePostPagination->expand_divi_output_pagination()
wp-includes/class-wp-hook.php:286
wp-content/plugins/expand-divi/inc/features/ExpandDiviSinglePostPagination.php:40

Plugin: expand-divi
Notice Undefined variable: html 1

the_content()
wp-content/themes/Divi/page.php:45
apply_filters(‘the_content’)
wp-includes/post-template.php:240
ExpandDiviRelatedPosts->expand_divi_output_related_posts()
wp-includes/class-wp-hook.php:286
wp-content/plugins/expand-divi/inc/features/ExpandDiviRelatedPosts.php:72

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