aact-392:  Improve error messages.  Wrap updates with one rescue clause that saves the backtrace to LoadEvent.problems.
aact-392:  Improve error messages.  Wrap updates with one rescue clause that saves the backtrace to LoadEvent.problems.
ctti-clinicaltrials/aact,ctti-clinicaltrials/aact,tibbs001/aact-1,tibbs001/aact-1,ctti-clinicaltrials/aact,tibbs001/aact-1