I have e-golf 2016. It got hit by a rock from underneath and apparently hit the main battery. After the hit, a warning message started to appear quite often that reads "Electrical System. Service Vehicle". The message appears in Orange triangle with an exclamation mark. The car also stopped charging while off.
In my country, there is no specialized electrician who can help with this and everyone is recommending changing the main battery. My questions are:
1) Is it safe to keep driving the car until fixing the issue?
2) Is there a way to fix it without changing the main battery?