It's impossible to find the Bible in the Basra Suburb. I did it with the treasure map, was at the exact location, told me it's the wrong place. I tried EVERY corner of the map, nothing.
My inventory is okay, and that would give an other error anyway.
What can I do about this?
if you go to an authenticator like Adatol in Barcelona City, you can "Authenticate Coordinates". It costs extra silver but gives the actual coordinates that you can type into autotrack to find. If you did this already and still no luck, then this is indeed a bug, do you have a screenshot?