Win 10. Sage 2018.3

Greetings to all! I'm new in this community and I look forward to meeting my fellow users.

Since the last backup of my company files I’ve entered some more journal entries which unfortunately were not backup. However I do have them saved with Winzip and stored on an external hard drive. 

When I unzipped these files back to my desktop hard drive Sage gave me the error message: "Sage 50 cannot open the database because the database engine reported an error. Please see the error log for more information." I've been trying to find a solution for days with Google results but no luck. It's time to look for alternatives. Is there any file in the Sage folders, either data or system, that might contain the journal entries, maybe as text files? If so I could just enter them manually, since there were too many. Thanks in advance.