Engine Prime not working

Please urgently advise

My engine prime said corrupted database So I reinstalled the software Now the software does not open I have gig tomorrow Please advise

Uninstall the software, delete all content from Engine Prime library folder, clean all registry entries referring to the software, restart the computer and then reinstall Engine Prime. If you happen to have a previous database backup, you can copy its content files to Engine Prime library folder, after reinstallation.

Thanks I will do this , appreciated