What is the problem? Please be detailed.
When I try to export data, I get the error : "Problem persisting data or accessing data"
What ODK tool and version are you using? And on what device and operating system version?
ODK Aggregate. Windows 10 and on a laptop
What steps can we take to reproduce the problem?
What you have you tried to fix the problem?
Anything else we should know or have? If you have a test form or screenshots or logs, attach here.