The system crashed during the 1am reset with an error. Debug code was inserted around this point to help track the issue
System has not crashed again, debug code will be left in but this item will be marked resolved for now
UPDATE: System crashed again during the 1am reset. The debug code indicated that this is happening if one of the symbols does not have any data when prices are downloaded, so the code was modified to ignore symbols where no price data is available during this routine.