First check the locations of the bad elements. Please see following video for the same.
https://www.youtube.com/watch?v=ZDADSSN8hOs
Once you have locations, please check if you can improve mesh using different mesh sizing. Please see following video.
https://www.youtube.com/watch?v=w4q6q8nKF3U
You can see more information about sizing at following link.
https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v221/en/wb_msh/msh_Use_Adv_SF.html?q=sizing
If this does not help, please go to geometry and modify or simplify geometry at those locations in SpaceClaim.
You are navigating away from the AIS Discovery experience