It's good to see you posting here in the Community forum, @Anonymous.
Let me help you migrate your QuickBooks Desktop to QuickBooks Online.
One of the main reasons why you received an error message when trying to migrate is that QuickBooks Desktop Premier 2014 is no longer a supported version. You may need to upgrade the software to have your data migrated and ensure that QuickBooks is up to date.
For more guidance in converting your data, here's a great resource that you can check out: Move your QuickBooks Desktop file to QuickBooks Online.
However, if you don't want to upgrade the software, you can move your books from QuickBooks Desktop to QuickBooks Online with an online tool.
Once done migrating, here's what you'll need to do to get going: What to do after you move from QuickBooks Desktop for Windows or Mac to QuickBooks Online.
Reach out to me in the comment section below if you have any additional questions. I'm always here to help. Have a wonderful day!
