Sierra and change of database location

Because of the problems with Sierra moving my documents and desktop folders to iCloud, I got into my iCloud drive and moved all my databases into a new folder not in my documents folder.
I could open all my databases from the new location but my syncing to dropbox has stopped working.
Please explain how I reinstate dropbox syncing so it goes to the new location.
Thanks, sorry if this is so simple I should know, but I don’t!

Moving the databases should not affect Sync itself. What is reported in Window > Log in DEVONthink?

The message that appears in the log for each database is:
15:49:06: Devonthink.dtCloud Broken or not yet complete manifest chain of database “My stuff”.

Please start a Support Ticket. Thanks