Warning Message appears when replying to a message

[llasalle]

I'm using BuddyPress version 1.5.2 with the default theme. I have not seen this previously, but I am now seeing the following error/warning message when I reply to a message. It does not happen when sending a new message. The only thing I have changed on my site recently is implementing a sitewide forum. Not sure if that is related.

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/content/28/8075728/html/wp-content/plugins/buddypress/bp-themes/bp-default/_inc/ajax.php:540) in /home/content/28/8075728/html/wp-content/plugins/contact-form-plugin/contact_form.php on line 667

[r-a-y]

Sounds like a conflict with the ​Contact Form plugin.

If possible, try one of the many, other contact form plugins available:
​http://wordpress.org/extend/plugins/tags/contact

[boonebgorges]

It sounds like two things happening at once:

• the Contact Form plugin is using a PHP session
• you are using a plugin that displays content at bp_before_message_meta (that's line 540 of ajax.php). Perhaps BP Usernames Only?

Since neither of these would be caused by BP itself, I'm going to close this ticket. (You may want to consider turning down the warning level on your site, so that these kinds of warnings are not displayed to users.)