OK. If it was working before, then it's a data corruption error. This could occur if you have a power faiure, Windows lockup, network interruptions, etc. Reinstalling the software would not help because the problem is not in the software, but rather in its database. There are a few things you can do to solve this problem:
1) Restore a recent back up of the database. Note that you will lose all data collected after the backup was made.
2) Run the database repair utility within the software. However, if you are unable to launch the software, this would not be an option.
3) Contact our support department for troubleshooting. The support staff might be able to repair the files manually with their development tools.
The 3rd option above is recommended as it could save your data. You will need an active support plan. If you do not have a support plan, you can buy one. See this web page for the various options http://www.engineeri...e/support-plans