My notes in logseq are missed

Hi: I have about a week copying notes into logseq and was already doing search and was putting markdown formatting to make it prettier. This morning I don’t know what happened I don’t see anything in logseq, just today’s date with a note that says “This is a demo graph, changes will not be saved until you open a local folder”. I went to C:\UsersMiddleAppDataRoamingLogseq
and there I see several folders. My question is how do I see my data like this morning and continue working, thank you.

Welcome. Check How to recover data after “clear cache”

Thanks a lot, clear and wonderful