500 Error

[somtum2000]

I have multiple custom post types, but one gives an Internal Server Error (HTTP Error 500) when attempting to view all posts from the left menu. The only way I can view posts for this custom post type is to manually add "orderby=" in the URL, which allows me to access posts. For example:

Does NOT work - /wp-admin/edit.php?post_type=mytype
Does work - /wp-admin/edit.php?post_type=mytype&orderby=date

All other post types work fine, and so far I have not been able to fix by disabling plugins.

Any thoughts?

[dd32]

A 500 error indicates a fatal PHP error or timeout, check your PHP log files.

I'm marking as invalid as there's nothing to indicate that it's a bug in WordPress causing the issue without extra details.

[SergeyBiryukov]

Duplicate of #20329.

Related: #10852, #15459.

[somtum2000]

Replying to dd32:

A 500 error indicates a fatal PHP error or timeout, check your PHP log files.

I'm marking as invalid as there's nothing to indicate that it's a bug in WordPress causing the issue without extra details.

Once wp_postmeta has 120,000 record, the admin back-end seem to work but once I import another 30,000 record into wp_postmeta. the custom post is not working. even I increase memory limit to 2048M (2 GB)

/ Memory limit */
define( 'WP_MEMORY_LIMIT', '2048M' );