On WP 3.3.3 and BP 1.5.2 I was recieiving the following error messages whenever a user earned an achievement:
Warning: Invalid argument supplied for foreach() in /homepages/13/d367927481/htdocs/storyteller/wp-content/plugins/achievements/includes/achievements-core.php on line 617
Warning: Cannot modify header information - headers already sent by (output started at /homepages/13/d367927481/htdocs/storyteller/wp-content/plugins/achievements/includes/achievements-core.php:617) in /homepages/13/d367927481/htdocs/storyteller/wp-includes/pluggable.php on line 866
For now I’m just going to delete the surrounding lines because I want the achievements but can’t have errors pop up for users all the time. Not sure if this will make my site slow down, or if it’s not a big deal for any but the biggest sites.
