[GNC] Lost Transactions - HELP

[Jonathan A. Cohen]

I use GnuCash 5.0 almost daily.  This morning for the first time, many of
my accounts are missing a large number of transactions.

Some accounts are missing a big chunk of history but have recent
transactions.  Others are missing transactions going back years but show
some earlier ones.  I cannot determine what exactly is missing nor what
might be the cause.

My finances are in complete disarray.  Can someone please help?!?