+ AA6YQ comments below
Here is the log.
+ Thanks for the errorlog, Jim. It shows that SpotCollector has lost access to your log file.
+ There was one occurrence of this back on 2019-06-23.
+ There have been many occurrences starting on 2021-01-21.
+ I suggest that you check your Windows event logs for reports of hardware or software failures on 2021-01-21.