It does look like "Pothemus" should be Polhemus, since that (or variations like Polhemius) is the spelling for the rest of the family and throughout the text sections (biography and sources) of the profile.
The profile manager is active, but hasn't edited in the last week or so. She may need some time to respond.
You will need the profile manager's involvement to fix the error in spelling the LNAB. But if you are eager to do some cleanup on the profile, add more sources, etc., I can't imagine that the profile manager would object.