Thanks for reaching out to us, NinaLebwohl.
I'm here to ensure you're able to access all your company files in Quickbooks Desktop (QBDT) with no issues.
If I may ask, have you upgraded your company file once you upgrade to a newer version? If yes, this time, I recommend running the File doctor from the QuickBooks Tools Hub.
Here's how to use the tools on the QuickBooks Tool Hub:
- Run the QuickBooks File Doctor from the QuickBooks Tools Hub.
- Follow the instruction to complete the process. Then, restore a backup copy.
If not, I suggest upgrading your company file by following the steps outlined in this article: Upgrade your company files after you switch to a new version of QuickBooks Desktop.
You can also visit our QBDT Help page, so you can browse articles or even questions of other QuickBooks users to help you earn more QuickBooks knowledge that can help you with your accounting tasks.
Keep me posted on how this works. Take care and have a great day!