Cause
This error occurs if your process attempts to delete one of its own environmental objects.
A process cannot delete an environmental object (system variable). Environmental objects (system variables) are:
self
app
global
system
node
process
currentSchema
rootSchema
method
exception
currentSession
appContext
Action
In JADE, you can reference the environmental objects by using a JADE system variable reserved word. Ensure that you do not attempt to delete any of these. In addition, ensure that your process does not add an environmental object to a collection (either by a manual add or through a relationship) and then try to delete the contents of the collection.