Incorrect surname entered - edit disallowed
I found a marriage record, but both the son (the groom) and his father have their surnames entered incorrectly on the database. When I hover over 'edit' it shows that I can't use this facility. How can I get the father and son's surname corrected (and the rest of that family)?
The surname has been entered as Mills and it should be Mittell. This is the father's record: https://www.familysearch.org/ark:/61903/1:1:NXL9-DKN