Error when I’m activating the plugin

Hi. I got a problem with the website. The problems are shown below

Warning: Cannot modify header information – headers already sent by (output started at ../public_html/wp-content/plugins/ajax-filter-posts/inc/Shortcode.php:668) in?../public_html/wp-includes/pluggable.php?on line?1435

Warning: Cannot modify header information – headers already sent by (output started at ../public_html/wp-content/plugins/ajax-filter-posts/inc/Shortcode.php:668) in../public_html/wp-includes/pluggable.php?on line?1438

• This topic was modified 1 year, 6 months ago by G. Manucharyan.

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