When using the Payslip loader plugin, if you used the convention 5, try to use the number 6.
If you used the number 6 convention, try using number 5.
If you're still experiencing the issue, raise a new case online and reference the title of this article providing the following details:
Confirm you've performed the above troubleshooting and followed the exact steps within the help guide.
Screenshot of the issue.
The name of the report.
The API key used.
The convention number used.
Permission to access your system.