If a program is issuing DC001036 messages, make sure that any involved utilities, for example
FORMAT,
LOAD,
INSTALL STAMPS,
SYNCHRONIZE STAMPS, have been run while CONNECTed to the correct catalog.
It is not necessarily SYSTEM and in most cases it won't be.
Also, note that if the database has been FORMATted BY FILE, a manual INSTALL STAMPs must be run.