If you are not aware of how to fix QuickBooks issues using the QuickBooks refresher tool, then follow the below-listed steps:
1. Close all the versions of QuickBooks Desktop running on your system
2. Download QuickBooks Refresher Tool by clicking here. Wait for the time the refresher tool takes to get downloaded.
3. Once done, save the file to a location where you can easily open it (typically Desktop)
4. Run QB Refresher Tool and reopen QuickBooks to check if the problem is fixed.