Let me share some troubleshooting steps to get rid of the error you've received.
When running payroll, the paycheck date determines what quarter and year it is for. You're getting this error because you may have filed a tax form for the current filing period. Here are the ways to get rid of this error:
The other way is for you to run payroll by clicking the Create another check link.
Lastly, I'd recommend contacting our Payroll Support Team. An agent can securely pull up your account and further assist you by unlocking it for you so you can pay your employees within this period. Here's how to reach them:
Click the Help icon on the top right.
Tap the Contact Us button at the bottom.
Enter a short description of your concern.
Choose to Message an agent or Get a callback to connect with our support.
You can read through this article to learn more about the different types of support we offer at Intuit and its availability: Support hours and types.
Don't hesitate to leave a comment below if you have other questions about running payroll in QuickBooks. I'm always here to help.