Are you still seeing this error on the latest version? Are you able to load any of the pages (for example /page1)?
The export unfortunately doesn't come with the history, so my best advice there would be to try to add the _historyOffset =5 url param to the url to step back
I haven't been able to reproduce the issue, which makes me think it may have had to do with resource query data. If stepping back doesn't work, I could send you an export of the app with all of the resource queries disabled to see if that helps load the page