I recognize the inconvenience this issue has caused you and your business, Micha1jw. I also appreciate the effort and patience.
You can opt for a cloud-based third-party hosting service, which allows you to run QuickBooks Desktop and store your data on the service provider's servers. It ensures secure access to your QuickBooks from any location and anytime. As every business has different needs, I'm unable to recommend which option to use. However, I can provide resources to help you choose the one that best fits your needs. Check out this article for complete details: Hosting providers authorized by Intuit.
Moreover, you can also read these articles for future reference:
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