Hello,
On pages where we use S&F (on a multisite), we get a 504 error.
In the error log we see the following:
mod_fcgid: stderr: WordPress databasefout Column ‘post_id’ cannot be null bij query INSERT INTO wp_5ExkF0_2_search_filter_cache
(post_id
, post_parent_id
, field_name
, field_value
) VALUES (NULL, ”, ”, ”) gemaakt door shutdown_action_hook, do_action(‘shutdown’), WP_Hook->do_action, WP_Hook->apply_filters, Search_Filter_Post_Cache->wp_shutdown, Search_Filter_Post_Cache->post_updated, Search_Filter_Post_Cache->update_post_cache
I’ve never seen this before. Do you have any idea what might be going on here?
Hopefully you can help us out!
-Kevin