There are a number of factors that may affect how much memory your website will need such as content, themes, plugins, etc. The default memory limit for WordPress is 32MB. If you’re only running a small site with basic functions, this default value is more than enough. However, to use all the features of the Sonnet, you need to adjust the memory limits.
1. Edit your wp-config.php file and enter something like:
WordPress memory can be different to the server – you need to set this regardless of server memory settings
2. If you have access to your PHP.ini file, change the line in PHP.ini If your line shows 32M try 1000M:
memory_limit = 1000M ; Maximum amount of memory a script may consume (1000MB)
3. If you don’t have access to PHP.ini try adding this to the .htaccess file:
php_value memory_limit 1000M
4. If none of the above works then talk to your host.