I need your help to resolve 1 Issue in Wordpress admin page. I'm using WP 3.7.1 and twentytwelve template. I have some posts and pages. Currently, when I click Filter or Apply button in Post/Page list, it always shows the error "Invalid Post Type" and the URL looks like this .
I tried to active another template and it works fine!
Please help me to understand and fix this issue!!! Thank you!!