008D8B6A It is invalid to MODIFY, ERASE or FIND a port.

    Explanation:

    You tried to FIND, ERASE, or MODIFY through a port from
    interactive DEC DATATRIEVE. Ports can be accessed only through
    callable DEC DATATRIEVE.

    User Action:

    Make your FIND, ERASE, or MODIFY refer to a domain that points
    to a record to which the port refers, or access the port through
    callable DEC DATATRIEVE.