The plugin loaded fine.
But then restarted HG over and over again.
I could see the problem was when a Temperature/Hydrometer was sending signals.
It triggered a status install thingie and restarted HG.
Every time it was sensed HG restarted.
Sensors can't be erased, only "non visible" in telldus because they send data all the time.
Also, I am having other problems: Dimmer will let me turn on or dim, but only once.
It will not let me turn off. Or dim another percentage.
If I turn off the light manually I can see that I can start the light from HG again, so this is weird.
And another "switch" works OK. Only thing not working is the "toggle"-button in the widget, which really is just cosmetics for me as I will not use it.