QB Issue Resolution:

The product number comes on the label with the disk. If you downloaded it the product number was provided. Your best bet is to call Intuit and delete this post – someone else can take your license if you post it.

Resolution for Issue 'how can i register?' available: Yes (Solved).
Source: Intuit Community forum.

how can i register?: 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.

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