I am trying to set up a network, but after inserting the code in the wp-config.php file I star getting the foloowing messages:
Warning: array_key_exists() [function.array-key-exists]: The second argument should be either an array or an object in /home/rperezq/public_html/wp-includes/theme.php on line 499
Warning: Cannot modify header information - headers already sent by (output started at /home/rperezq/public_html/wp-includes/theme.php:499) in /home/rperezq/public_html/wp-includes/pluggable.php on line 934
I changed the active theme to the default WP, but the messages persist.
Could you please support me with this issue?