Same issue in my blog too.
To fix this error, go to line 467 of intensedebate.php
Change:
f ( ! in_array( $comment->comment_approved, apply_filters( 'id_comment_approved_blacklist', array( 'spam' ) ) ) ) {
To:
if ( ! in_array( $comment->comment_approved, apply_filters( 'id_comment_approved_blacklist', array( 'spam' ) ) ) ) {
They have an ‘f’ instead of an ‘if’
Thanks mmcomb. This helped.
One qsn to the intensedebate team (pretty much a rant) – this looks like an error that would have affected almost every single blog that upgraded to 2.9.1! Minor update or major – please test!!
Moderator
James Huff
(@macmanx)
Volunteer Moderator
We apologize for the delay. We were working hard a fix and we now have it ready in the 2.9.1 version of IntenseDebate (we decided not to bump the version number for this). There are three ways to fix this depending on your level of access:
1. Delete the plugin from the Plugins section of your blog’s Dashboard and reinstall it.
2. If you cannot access your Dashboard, you’ll need to access your server via FTP or SFTP http://codex.wordpress.org/FTP_Clients and navigate to the /wp-content/plugins/ directory. Once there, delete the /intensedebate/ directory and all of the files within. Once that is done, return to the Plugins section of your blog’s Dashboard and reinstall the plugin.
3. If you cannot access your server via FTP or SFTP, please contact your hosting provider to remove the /wp-content/plugins/intensedebate/ directory and files for you, then reinstall from the Plugins section of your blog’s Dashboard.
Please note that neither of these reinstall methods will affect your existing comments.
We apologize for the inconvenience.
mccomb, thanks for dropping by to post the fix!
