This issue consists of a blank screen loading when you try to access the site .The two common causes of this issue are caused from plugins and themes. If you can access your administration panel, the best way to pinpoint this issue is to try deactivating all your plugins except bbPress one by one. If that does not work then try changing your theme to a default theme like twentytwelve.
The causes could be any of the below.
- Memory Limitation
- Custom php code functions
- Long well written post’s cache
Follow the common troubleshooting steps for theme/plugin issues and also clearing cache listed in Troubleshooting. If this does not resolve your issue then try one of the following methods to increase the memory limit to solve this issue.
Increase your memory limit with php.ini
If you have access to your PHP.ini file, change the line in PHP.ini
If your line shows 32M try 64M.
Increase your memory limit with wp-config.php
Open up your wp-config.php file located in the root of your WordPress directory.Now add the following piece of code to the file.
Increase your memory limit with htaccess
You can also add this piece of code to your htaccess code.
php_value memory_limit 64M
If you cannot resolve the issue with the methods above, it means that your hosting provider prevents increases in memory limits. Contact your web host’s support right away.