Help! Program Crashes after attempting backup and identification errors now exist.

I have had trouble with the Quicken program. So I deleted the program from windows and reloaded it from the Quicken Web site. After the reload and entering in the data file and updates the program worked fine. I then attempted to back the file up and the program crashed left me with the windows screen. I clicked on the quicken icon and the reloaded the quicken program. After entering in the pass words for the program and the vault the numbers appeared on the screen but the checking account name and the payees now say "N/A". As you can imagine this is very frustrating. I am back where I started with a program that does not work. Running windows 10 and the latest version of quicken with all the updates. we have used Quicken for approximately 20 years and never had this trouble. Any help would be appreciated.