Thanks for bringing this to our attention, thelittlemobilegroomingshop.
It's possible that some of your taxes aren't set up properly, which could be causing the error when you try to access your sales tax account.
Can you provide the specific error message you see when you go to your Taxes? This will help us determine the exact cause and provide the most accurate solution in QuickBooks Online.
Also, if you need to edit your sales taxes, you can click the Sales tax settings and then the Edit button to set them up correctly.
If you have any more questions, feel free to reply. We're here to help.