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I keep getting this message. I don’t know what it means or how to fix it.
Please help!!!
Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘ola_mc_update_campaign_content’ not found or invalid function name in /home/sruslacker/public_html/wp-includes/plugin.php on line 496
Warning: Cannot modify header information – headers already sent by (output started at /home/sruslacker/public_html/wp-includes/plugin.php:496) in /home/sruslacker/public_html/wp-admin/post.php on line 233
Warning: Cannot modify header information – headers already sent by (output started at /home/sruslacker/public_html/wp-includes/plugin.php:496) in /home/sruslacker/public_html/wp-includes/pluggable.php on line 1178
Hi Robin
Sorry to hear about the hassle.
Please can you check to see if this is plugin related. De-activate all non-SiteOrigin plugins, re-check, if the issue resolves, re-activate your plugins one by one, each time checking the problem.