Debug warning messages for functions.php

I have WP_DEBUG active on a staging site, and it’s showing the following messages.

Deprecated: Required parameter $field_name follows optional parameter $type in [plugins_directory]/ajax-load-more-for-acf/functions.php on line 14

Deprecated: Required parameter $id follows optional parameter $type in [plugins_directory]/ajax-load-more-for-acf/functions.php on line 14

Deprecated: Required parameter $field_name follows optional parameter $type in [plugins_directory]/ajax-load-more-for-acf/functions.php on line 219

Deprecated: Required parameter $id follows optional parameter $type in [plugins_directory]/ajax-load-more-for-acf/functions.php on line 219

Deprecated: Required parameter $field_name follows optional parameter $parent_field_name in [plugins_directory]/ajax-load-more-for-acf/functions.php on line 282

Deprecated: Required parameter $id follows optional parameter $parent_field_name in [plugins_directory]/ajax-load-more-for-acf/functions.php on line 282

Warning: Cannot modify header information - headers already sent by (output started at [plugins_directory]/ajax-load-more-for-acf/functions.php:14) in [site_directory]/wp-admin/includes/misc.php on line 1381

Warning: Cannot modify header information - headers already sent by (output started at [plugins_directory]/ajax-load-more-for-acf/functions.php:14) in [site_directory]/wp-includes/functions.php on line 6878

Warning: Cannot modify header information - headers already sent by (output started at [plugins_directory]/ajax-load-more-for-acf/functions.php:14) in [site_directory]/wp-admin/admin-header.php on line 9