Hi, I am trying to upload a shapefile from my computer to ArcGIS Online. I clicked on My Content -> Add Item, chose a file(a zip file containing all the auxiliary files of shapefile including the shp file), wrote the Tags, filename and when I click on the "Add Item" button the pop up menu, nothing is happening. I have tried with the same file before and it had worked before. Tried from two different Windows machines, tried different file sizes and different file names too. Still it doesn't seem to work. Any help will be appreciated.