[GNC] locked data base

[Bob Sisk]

GnuCash could not obtain the lock for 
file:///home/bob/Dropbox/gnucash_data/GreenGrillsData.gnucash.20180825170527.gnucash.20190706140712.gnucash.

I get the above message when trying to open Gnucash. I click "open 
anyway" and it seems normal. What is causing this and what should I do? 
I am running Linux Mint 19.1.

-- 
/Robert Sisk
sisk.bob at gmail.com
(210)716-6400/