I got the below error on my installation, so to be sure it was this plugin causing the error, I activated the plugin on a fresh install of WordPress with no other plugins activated. This is the error I receive:
Invalid argument supplied foreach() in C:\webtree\dummy\wp-content\plugins\cimy-user-extra-fields\cimy_uef_profile.php on line 77
This appears above the list of extra user fields on any user's profile. Though the plugin retrieves the extra user fields properly, it always displays this error above each extra user field it retrieves, and also doesn't save any fields to the database.
Also, I get the same error several times on the A&U Extended List:
Invalid argument supplied foreach() in C:\webtree\dummy\wp-content\plugins\cimy-user-extra-fields\cimy_uef_admin.php line 1448
This plugin handles userdata better than Register Plus, if only it worked!