Database table channel with historic address data

A hubzilla installation on virtual private server was deleted, then re-installation successful.
                Tried to create channel, but error received that name taken
                Entered the postgresql database of hubzilla vps
                    SELECT channel_address FROM channel WHERE channel_name='...';
                        channel_address
                        -----------------
                         ...
                         ...
                         ...
                         ...
                        (4 rows)
                        
                The database also shows 4 different, random character strings for 'channel_guid' for the 4 identical name channel_address values
            
                Seems that when channels are attempted to be created, deleted, the database keeps them stored. Should these be deleted from the postgresql database, to be able to create a channel of the desired name?
                
                Also entered the hubzilla administrator account, to view 'admin', 'channels'. The web page does not show the channels which were shown via the postgreqsl search query, above.