In order to resolve it, please follow steps below.
1. Press Ctrl + Shift + R
This refreshes your page and may resolve the issue.
2. If that doesn't work:
Search for "Services" in your Windows search bar and make sure to run it as administrator.
In the Services window, look for "Erply Installer 2".
Right-click on "Erply Installer 2" and select "Start" or "Restart".
Go back to the Brazil POS page and make a refresh.
If it does not resolve the issue, please contact ERPLY Support team.