Invalid argument supplied for foreach() in <drupal_home>/modules/taxonomy/taxonomy.module on line 1241

The above error was reported in the log when cron was run. If cron.php is run manually, in addition to the above error, a page is displayed with the stdClass Object { ... }, which shows the content of the Admin user object, and followed by the error below:

Fatal error: Call to a member function get_variables() on a non-object in /includes/common.inc(1696) : eval()'d code on line 5

I was able to run cron before at some point and I have been adding some new modules and making changes to some objects such as Content Profiles. I am not exactly sure when this behavior started. The only thing I can think of is that I used to have some Content Taxonomy fields in my Content Profile and I removed them while there were a few test users with defined values for these fields. I first removed these fields from the Content Profile and then removed the Taxonomy terms.

Any help is greatly appreciated!

Thanks,
Michael