Similar problem here:
supplied for foreach() in /home3/samuelrrowe/public_html/thelearningtoolbox.org/wp-content/plugins/gp-premium/sites/sites.php on line 338
Warning: Invalid argument supplied for foreach() in /home3/samuelrrowe/public_html/thelearningtoolbox.org/wp-content/plugins/gp-premium/sites/sites.php on line 365
Warning: Cannot modify header information – headers already sent by (output started at /home3/samuelrrowe/public_html/thelearningtoolbox.org/wp-content/plugins/gp-premium/sites/sites.php:338) in /home3/samuelrrowe/public_html/thelearningtoolbox.org/wp-admin/includes/misc.php on line 1114