Also, try:
sudo -Hu pleroma bash cd /opt/pleroma MIX_ENV=prod mix pleroma.config (you may have to add --force here) reset exit back to root systemctl restart pleroma.servicethis should delete all custom configuration from your database. Note that this also effects how your server handles EXIF data in uploaded images so if that’s a concern to you, keep that in mind, at least until you configure it again.