Blank page after changing number of post displayed in wp-admin

If you are looking to reset “Post_Per_Page” field, please refer attached screenshot, you need to update “Blog pages show at most” file and you can find it at Admin >> Settings >> Reading.

If you are unable to access admin area as well, you can change it directly in database.
To change this variable directly in database open “wp_options” table, search for record where “option_name” = ‘posts_per_page’ and update “option_value” column for that record.

enter image description here
Hope this will help you.

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