Do you have two characters on the go at the same time (sounds like it), or did you play the warrior awhile ago? Not that it matters; if you didn't make any major changes between the two attempts, the survivor should work also.
Try deleting all of the files in the '..\Divine Divinity\Run\Dynamic' folder. Then start Divinity, load the survivor and try again.
This folder is used as a cache for the game. Files are created / copied there from the save game folder when you load, and written / copied from that folder when you save a game. The files will be re-created as required the next time you start the game. If there was a corrupt file in that folder, deleting the files should fix the problem. Maybe something from the warrior's game got left behind, and is interfering with the survivor?
Hopefully it is not a problem with the save. Do you have an earlier save with your survivor, from awhile ago but after completing the council? If so, try loading that and see if you can get to the wastelands.
