Warning : Undefined index: type - Matomo 3.8.1

Hello ,

I am getting this warning on my on premises installation of Matomo .

WARNING: /usr/share/nginx/html/piwik/core/Db/Settings.php(40): Notice - Undefined index: type - Matomo 3.8.1 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already)

Is there any way to resolve this ?

I migrated the database from TokuDB to InnoDB .

All these errors are gone since i moved to InnoDB .