Base table or view not found

Hello there,

I'm experiencing the following error;

SQLSTATE[42S02]: Base table or view not found: 1146 Table 'calendar.cal_node_revisions' doesn't exist

In views when trying to add a views data export field. I shall post this on the views data export project page as well. This only happens when the views export field is added and I can't see the view.

Any ideas?
Cheers