ENFB was the old Fornebu airport which closed in 1998, however the code now belongs to an oil rig located in the ocean between Norway and Scotland.
The coordinates are N61°12’23” E001°49’44” or N61.206389 E1.828888889.
I've mailed this to ourairports.com as well, I found threads from 2018 where you mentioned them as your source.
3 years ago @tajmassey reported a similar problem
I asked ourairports,com to change the location indicator
(see Latest comments for YBOO Tue, 07 Aug 2018)
but they never took any action.
I'm afraid they have stopped updating their database
and windy must change the source for airports.