Assertion 'Number of bits in range' failed at line 351 of file '../base/bitmap.c'

Restore the shapefile with a back up copy. If no backup copy is available you may have luck repairing the shapefile with the Shapechecker utility. Andrews ArcView Page has a utility to do this (see link under Related Information). Click 'How to / Useful' on the left and then ShapeChecker. Follow Andrew's instructions to download and use the utility.

Warning:
The ShapeChecker Utility is a third party application and is not supported or guaranteed by ESRI. We recommend backing up your files before performing any operation with this utility.

Note:
To avoid future file corruption refer to the 'Maximize your system's resources . . .' document under Related Information.