No need to ask permission before you can ask a question, just go ahead and ask it.
What would you like to know?
Musicbrainz.org is an online database containing information about artists, groups, releases, works etc.
Items are cross linked so you can go to a page representing a release of a cd and follow a link to the artist page etc.
There is desktop software that allows you to query the database and write tags to your music.
Picard is one of these desktop software but there are others.
Looking at your edits to the database I can see you have added a new release.
Can you please confirm that your band had a release "Counting the Death" and "Milk EP" or was "Counting the Death" by a different artist?
if that first release was not by your group you should create a new artist entry for your band and move change the artist on "Milk EP".