Not working anymore on ipad 1

It worked fine on my ipad 1, but since a few weeks it cannot connect to server (others have the same issue).
On newer ipad, after updating the app, there is NO issue at all, but on ipad 1 (which is still useful for such apps as a wall mounted device) it stopped working.

Please fix!

Deletonator about POCKET RADAR weather forecast, v2.0.7