Interspire Product Knowledge Base

The main cause of getting a blank page when accessing the checkout settings in your store admin is because PHP is reaching its maximum memory limit. Each checkout module gets loaded when viewing the checkout settings, and because more and more have been created over time we then use up more and more memory, when can cause PHP memory limits being reached for people with low memory usage set for their PHP. This memory usage problem with the checkout settings will be addressed in version 4.5.

To increase your PHP memory limit you will firstly need to ask your hosting provider is you are allow to add php_value statements in your .htaccess (this file is located in your Shopping Cart installation directory). If you are allowed then all that is needed is to add in the following code at the bottom of the page:

php_value memory_limit 64M
 
There is a space between php_value and memory_limit and between memory_limit and 64M. The 64M is the memory limit is megabytes, which you can increase if you want.

If you do not have permission then you will need to ask your hosting provider to increase your PHP memory limit, preferably from 32 to 64 megabytes.