Thank you for sharing the details of your situation here in the Community, @GeopfertSpeech. I'll point you in the right direction for support so you can go back on track with your business.
I recommend contacting our Contact Payments or Point of Sale Support team. This way, a representative can investigate and check your card reader to determine the root cause of the issue. Once done, they'll then assist you on how to fix it to make sure it gets sorted out.
Please feel free to read these articles for future reference:
Always know that you have my back if you need assistance with your QuickBooks-related questions. I'll keep an eye on your response. Keep safe and enjoy your weekend!
