Support » Plugin: Email Subscribers & Newsletters » Getting error when publish post after recent update

  • Warning: count(): Parameter must be an array or an object that implements Countable in /wp-includes/post-template.php on line 293

    Warning: Cannot modify header information – headers already sent by (output started at /wp-includes/post-template.php:293) in /srv/users/cybersportdev/apps/cybersportprod/public/wp-admin/post.php on line 222

    Warning: Cannot modify header information – headers already sent by (output started at /wp-includes/post-template.php:293) in /srv/users/cybersportdev/apps/cybersportprod/public/wp-includes/pluggable.php on line 1251

    Warning: Cannot modify header information – headers already sent by (output started at /wp-includes/post-template.php:293) in /srv/users/cybersportdev/apps/cybersportprod/public/wp-includes/pluggable.php on line 1254

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