Query for a Report

[Humanski]

I have created a form that when I click a button should run a query and create a report but I get this error msg does anybody know what it means :-

Enter Parameter Value

Forms!REPORT : Complaints Recieved! text0

If I press cancel I get a runtime error "2501"

This works for my monthly reports but now I have tried to create weekly reports its decided not to work

Thanks Pawel