Hello Maggie,
I am sorry you are having difficulty with the sharing feature of CODAP. A 3000 row dataset should be fine. I concur with Andrew that trying a different browser might help. It’s possible it’s an issue with the type of browser or computer. I am curious what you are using.
A transient server problem could have also caused the issue. Was the error occurring immediately prior to your post? Is it still occurring?
Jonathan Sandoe