There could be several kinds of error patterns that throws ORA-14511, this is one case.
Moving a Partitioned Table
SQL> alter table sh.sales move tablespace users;
alter table sh.sales move tablespace users
ERROR at line 1:
ORA-14511: cannot perform operation on a partitioned object
This is because you cannot move such table like a normal one, you should move a partitioned table by some more deliberate steps.