Hi Jagan,

This error usually happens in Mendix Studio Pro when you close a page or dialog, and Mendix tries to rollback changes, but there’s no actual change or transaction to rollback.

please check actionbutton3 on your page by hitting ctrl+f where this error is coming and check what action you are performing on it.

Why this happens:   

1. You might be clicking a Cancel or Close button

2. Mendix tries to undo changes, but there are no changes made, so it throws this error.

3.  It’s common in popup forms or dialogs.

you can fix this issue by using following methods:

1. Use only “Close Page” if no changes are made. Don’t use rollback if it’s not needed.

2. If you’re using a microflow on close, make sure you check if the object is actually changed before calling rollback.

3. Try updating Mendix Studio Pro — this is a known issue in older versions.

4. If possible, avoid putting rollback in a button unless you’re sure the data was changed.

This error is mostly harmless during development, but it’s better to clean it up to avoid confusion.

I will suggest you to upgrade your mendix studio pro as you are using 9.7.0 which is quite older version now then check this issue again if above steps doesn't help you.

Hope this helps!