Increasing memory limit in WordPress
Sunshine does have a few functions that can require higher memory limits than are the default – especially when it comes to uploading high resolution images or when downloading large zip files of digital negatives. One thing to try is increasing the available memory your server/WordPress/Sunshine has access to so the process can properly run.
There are two places where the maximum allowed memory is set: At the server level and in WordPress.
If you go to Sunshine > Server Info you can see there are two lines for “PHP Memory Limit” and “WordPress Memory Limit”. We want those to be as high as possible.
Step 1
First step is to change the memory limit in WordPress as this is required no matter what.
Edit your wp-config.php file and add the following:
define('WP_MEMORY_LIMIT', '256M');
We want this as high as possible that your server will allow. So look at your “PHP Memory Limit” (as described above) and match that number.
Step 2
Next step is to ask your web host to increase your available PHP memory to the max they allow.