I cannot edit my game that I published and it seems to be a problem. I cannot delete it either. I would like to delete it or edit it. Can someone help?

Are you using the online editor, or the off line one?
if it is online... I don't know...
Off line, (the better choice), then you have your local copy...
Make your changes, then upload the corrected / updated version...

Online, I might as well re-do the whole thing.