Indications for this issue

• When you add a product to the cart and the customized product is not added to the cart.
• When you add a product to the cart and the thumbnail is not displaying.
• When you are not receiving the customized product in the order.
• When you trying to export a product/order and you receive an error message.

Solving the issue

You need to adjust some php.ini directives in your server configuration. If you do not know how to do that, please contact your provider, we can not do that for you.

There are 3 directives that might be increased:

This sets the maximum amount of memory in bytes that a script is allowed to allocate
memory_limit = 32M
 
The maximum size of an uploaded file.
upload_max_filesize = 2M
 
Sets maximum size of post data allowed. This setting also affects file upload. To upload large files, this value must be larger than upload_max_filesize
post_max_size = 3M