Scheduled Refreshes Failing

I have a dashboard that has been refreshing successfully everyday, twice a day since May. As of this month, the refreshes keep failing with no clear sign of why. I know at the end of July, Power BI had something strange happening on the service and nobody was able to refresh any datasets for a while. Not sure if that has anything to do with it, but it's a possibility. I have other dashboards that simply had to have their refresh schedules turned back on after Microsoft fixed the issue. All cooperated except this one. I can refresh at the desktop level just fine. Here's what the history looks like:

When clicking on Show, I get this error but it's very vague. I've checked this table and nothing seems wrong with it:

I haven't made any changes to this dashboard at all so I'm not sure what the issue could be. Just randomly started failing. Even making a new copy of it and uploading it as a new report and giving the new copy a refresh schedule didn't do the trick. Any ideas?