I have experienced a bug when using the ArcGIS, and the page stops and forced me to quit ArcGIS automatically. After i re-open it, I found the file is corrupted, and after that I found most of the data gone wrong (the attributes in the attribute table are not match with the feature identified by clicking onto the line), the order is corrupted. Is there anything I can do to restore the version before the crash and is someone also experienced this situation, as i cant find very relevant experience by the other users. Thank you.