The area files are all straight from the files section on this site and the errors are occurring in essentially the exact same place: first room, third ~ after the room description.
Here's the bit from the log:
Sun Jun 6 23:24:09 2010 :: [*****] BUG: Fread_number: bad format. (~)
Sun Jun 6 23:24:09 2010 :: [*****] FILE: pillars.are LINE: 1385
Pillars.are is the Hidden Worlds of the Portal Stones area.
Line 1385 is the ~ right above 0 -1 106001
Southern gate of Highmoon~
If it wasn't for the enormous tower reaching up at the clouds, you
would have walked past this city without noticing it. The forest
complete blocks vision of the walls, that are covered with all
sorts of vines and flowers. You take a deep breath and smell the
forest, mixed with the fragrance of freshly baked bread and sweet
elven wine coming from inside the gate.
0 0 1 0 0 0 0 0
0 -1 106001