Error 500

Hello,

I deleted the plugin but after a few months as yet my google search console show me some page with server error (5xx)

plugins/music-press-pro/templates/artist/artist-video.php
plugins/music-press-pro/templates/artist/artist-all-songs.php
plugins/music-press-pro/templates/artist/artist-audio.php
plugins/music-press-pro/templates/artist/artist-album.php
plugins/music-press-pro/templates/artist/artist-all-albums.php
plugins/music-press-pro/templates/artist/artist-all-videos.php
plugins/music-press-pro/assets/js/shortcode/
plugins/music-press-pro/assets/js/

Please assist me to solve the issue.
Thanks in advance