As mentioned, they won’t be able to register and use QB 2007.
Also, tell the non profit to check http://techsoup.org to purchase QuickBooks at a great discount / price.
Resolution for '2007Pro issue: 'Deactivate License 2007Pro' available: Yes.
The 2007Pro 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 2007Pro issue yourself by looking for a resolution described in the article. If it is a complex 2007Pro issue or you are unable to solve the issue, you may contact us by clicking here or by using other 2007Pro support options.
For more information about resolving issues related to 2007Pro in Quickbooks/QBO or to get support for the issue 'Deactivate License 2007Pro', click the link below: