First – the good news. App is now back on all TV’s in all regions and platforms.

Due to an security and region updates of all LG TV’s , it is possible that your Software ID on your (older) WebOS (with OS version 1.0 up to version 2.4) will change after the update.
Newer WebOS TV’s are already secure and can be used right after the upgrade. Software ID and Virtual MAC will not change on next updates. 
This was done to prevent the last license hack from working and make the app more stable.

Also, this is a step forward towards a new license management system that will allow your Virtual MAC to stay the same even if you change your TV (or this happens again) for whatever reason.

Please follow the instructions to change your licensed Software ID:

https://www.smart-stb.net/knowledge-base/how-to-change-the-software-id/

Thank you for understanding.