Thanks for dropping by the Community, @aliwolfe_photo.
I checked if there's an ongoing issue about this, but there isn't currently one.
Some QuickBooks Payments users have a limit of how much they can get paid within a 30-day rolling period. This is determined by the online payments you've received for the past 30 days. As soon as you reach the processing limit, your customer won’t be able to pay online until it is reinstated.
Please refer to this article for additional information: Online payments and processing limits.
On the other hand, you haven't reached the limit yet, I highly recommend contacting our Merchant Support team. They have tools such as screen-sharing (remote access) that can check your payment account and further investigate.
Check out this article to get their most updated contact information: https://community.intuit.com/browse/payments-contact-us.
Please let me know how the call goes in the comment section below. I'm always here if you have any other issues or concerns. Have a great day!