45 years accident-free not recognised

In Germany I have been driving accident-free for more than 20 years,after which I have lived abroad for 25 years and have not had an accident for 25 years.Back in Germany I have tried to allow a car on me,but I have to pay the maximum rate of insurance,because my German accident-free time is back for so long.What can I do?Is there a car insurance, where I have to pay normal contributions and not be treated like a driver? Bernie