You can reinstall in the following way:

 

Click on the waffle/menu button to open the app drawer

Click on “Browser”

Navigate to https://storage.getmeetio.com/apks/meetio-system-1.10.3-LG.apk and install the downloaded file (you can drag down from the top left to find it)

Go to browser again and navigate to https://admin.getmeetio.com/storage/apks/meetio-update-1.0.1.apk and install the file

Finally, go to the browser again and install https://storage.getmeetio.com/apks/meetio-room-2.4.4.apk . When installation is done, click to open the Meetio Room app.

This will install a fairly old version of our software, but you can then update it via Meetio Admin.