Increasing the WordPress Memory Limit

1. Edit your wp-config.php file and enter something like:

define('WP_MEMORY_LIMIT', '96M');

http://codex.wordpress.org/Editing_wp-config.php#Increasing_memory_allocated_to_PHP

1. If you have access to your PHP.ini file, change the line in PHP.ini
   If your line shows 32M try 64M:

memory_limit = 64M ; Maximum amount of memory a script may consume (64MB)

1. If you don’t have access to PHP.ini try adding this to an .htaccess file:

php_value memory_limit 64M

1. If none of the above works then talk to your host.