If you faces white screen when accessing Shifter dashboard (https://go.getshifter.io), you'll need to flush flushing cache.
Here is way to do it.
Google Chrome
1. Access login page https://go.getshifter.io
2. Right click on the page and select [Inspect]
3. Click [Application] tab
4. Right click [shifter-dashboard....] under [Cache Storage] on [Cache] menu and delete it
5. Reload page and you can login.
Firefox
1. Access login page https://go.getshifter.io
2. Right click on the page and select [Inspect Element]
3. Click [Storage] tab
4. Right click [https://go.getshifter.io....] under [Cache Storage] menu and delete it
5. Reload page and you can login.