You cannot edit the {0} because it was already deleted.
Explanation
The record you want to edit has already
been deleted. Either this was done by someone else or it was done
indirectly because something was deleted that is referenced by this
record; and therefore, this record was also deleted. .
User response
Ask if one of your colleagues accidently
deleted this record or look to see if a record that was referenced
by this record was deleted