QB Issue Resolution:

We partnered with Odyssey to help our users migrate their QuickBooks Desktop file to QuickBooks Online. Please visit their website for more details: https://www.odyssey-resources.com/quickbooks_onlineuae/. You may also send them an email using the email address in the Any questions section.

If Odyssey will require you upgrade your company to a higher version of QuickBooks, you can download a trial version and restore your file.

Here are articles for your reference:

Resolution for Issue 'How to migrate data from Quickbooks Premier 2012 to QuickBooks online?' available: Yes (Solved).
Source: Intuit Community forum.

How to migrate data from Quickbooks Premier 2012 to QuickBooks online?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for QuickBooks desktop version
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!

Error Recovery for QuickBooks desktop version [Canada]
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