The area of pressing on the "Choose File" button is too large.
- Go to "https://sandbox.genesys-pgr.org/welcome";
- Login as ADMINISTRATOR;
- Click on the User name in the header
- Click on the "Administration";
- Click on the "Repository" menu item;
- Click on the "Repository file manager" in the drop down menu;
- Click on a space in the middle of the page right of the "Choose File" button;