Oracle Message ORA-15000 - command disallowed by current instance type

ERRORcommand disallowed by current instance type
CAUSEThe user has issued a command to a conventional RDBMS instance that is only appropriate for an ASM instance. Alternatively, the user has issued a command to an ASM instance that is only appropriate for an RDBMS instance.
ACTIONConnect to the correct instance type and re-issue the command.