Wrong Total Q & A number

Hello @team,

Please fix Q & A Table List Pagination wrong number.
In this screenshot, List show 1 item, but Pagination show 6 items.

http://prntscr.com/11frb2n

This issue caused by the function: get_total_qa_question missing SQL INNER JOIN to wp_users table ( maybe because users be deleted but their Q&A ? )
http://prntscr.com/11frlqb