A common problem happens to your website is “Allowed Memory Size Exhausted” error. It means your WordPress installation doesn’t have enough memory to operate. Here are some solutions you can try:
Method 1: Edit file wp-config.php
Add the following to wp-config.php
define( 'WP_MEMORY_LIMIT', '256M' );
(usually place under define(WP_DEBUG, true);
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Read more here.
Method 2: Edit file .htaccess
Make sure you back up .htaccess before you edit it.
Add the following to .htaccess:
php_value memory_limit 128M
Method 3: Edit php.ini
Add the following to php.ini:
memory_limit=128M
Read more here.
If you’ve tried all methods and still get errors, please contact your hosting administrator to resolve this issue.