I have no clue what that means lol. Please explain
Ok, it's not the regeneration setting that you need to tackle, but the "Battery manager" setting you need to adjust.
That might make the message disappear; I'm not sure, since I never saw it on my car (but I charge daily - that might be an explanation).
However, what you need to know after all those replies in this topic, is that YOU CAN charge your car using the ICE. Just have a look at the pictures...
First, go into battery manager settings - first picture.
Then, under on the "hybrid" icon (see where my finger is pointing on the second picture) click that "user settings" button. Once you've clicked that, you will be able to adjust the battery level that you want to get, or to reserve for later (if you already had a full battery and you don't want it to go down to 0%). When you are able to EDIT battery level, the 3 symbols (left arrow, equal, right arrow) under the battery (see 2nd picture) will allow you to edit the desired level.
Since you are already on empty battery, just click once or twice to set a battery level to be charged while driving using the petrol engine. Ideally, you would wand to charge while on highway or outside the city - that's more efficient than in-town charging.
Hope that helps... Reading the manual also helps