This happens on a plan that does not yet has activities defined.
Hi. maybe you are trying to access a record that doesn't exist. Perhaps you deleted a record with a foreign key and that foreign key as a "delete" instead of "Ignore" or "Protect":
Yes probably I know, If I wanted I can fix it easy probably.. I just wanted to point out to the creator of the component that it needs fixing. Wasn't planning on doing that myself. Only downloaded and rates for evaluation.